diff --git a/src/controller/DatasetDetailController.cpp b/src/controller/DatasetDetailController.cpp
index 5a923b8..1def781 100644
--- a/src/controller/DatasetDetailController.cpp
+++ b/src/controller/DatasetDetailController.cpp
@@ -1,60 +1,62 @@
 #include "DatasetDetailController.hpp"
-#include <stdexcept>
-#include "repo/IDatasetRepository.hpp"
+#include "repo/IAsyncDatasetRepository.hpp"
+#include "api/DatasetLoadHandles.hpp"
 namespace geopro::controller {
 
-DatasetDetailController::DatasetDetailController(data::IDatasetRepository& repo, QObject* parent)
+DatasetDetailController::DatasetDetailController(data::IAsyncDatasetRepository& repo, QObject* parent)
     : QObject(parent), repo_(repo) {}
 
 void DatasetDetailController::openDataset(const QString& dsId, const QString& ddCode) {
-    if (busy_) return;                              // 防重入（同步网络期间 QEventLoop 可重入）
-    busy_ = true;
     if (ddCode != QLatin1String("dd_inversion_data")) {  // 首版仅支持 ERT 反演
-        busy_ = false;
         emit loadFailed(dsId, QStringLiteral("暂不支持该数据类型的预览"));
         return;
     }
-    const std::string id = dsId.toStdString();
-    try {
+    if (chartLoad_) chartLoad_->abort();                 // abort-and-replace
+    data::ChartLoad* load = repo_.loadChartAsync(dsId.toStdString());
+    chartLoad_ = load;
+    emit loadStarted(dsId, LoadPhase::Chart);
+    QObject::connect(load, &data::ChartLoad::done, this,
+                     [this, load, dsId, ddCode](const data::ChartParts& parts) {
+        if (load != chartLoad_) return;                  // §5.0 句柄身份比对：丢弃迟到信号
+        chartLoad_.clear();
         ChartData d;
         d.dsId = dsId;
         d.ddCode = ddCode;
-        // 严格对齐原版「原数据」页：只拉 scatter + 散点色阶(type1) 两个。
-        // 网格数据(inversion/rows)与异常(queryException)随「网格数据」页按需懒加载。
-        d.scatter = repo_.loadScatter(id);
-        d.scatterScale = repo_.loadScatterColorScale(id);
-        busy_ = false;
+        d.scatter = parts.scatter;
+        d.scatterScale = parts.scatterScale;
         emit chartReady(d);
-    } catch (const std::exception& e) {
-        busy_ = false;
-        emit loadFailed(dsId, QString::fromStdString(e.what()));
-    } catch (...) {  // 非 std 异常(VTK/Qt)也必须复位 busy_，否则永久拒绝后续加载
-        busy_ = false;
-        emit loadFailed(dsId, QStringLiteral("未知错误"));
-    }
+    });
+    QObject::connect(load, &data::ChartLoad::failed, this,
+                     [this, load, dsId](const QString& msg) {
+        if (load != chartLoad_) return;
+        chartLoad_.clear();
+        emit loadFailed(dsId, msg);
+    });
 }
 
 void DatasetDetailController::loadGridData(const QString& dsId, const QString& ddCode) {
-    if (busy_) return;                                   // 防重入（同步网络期间 QEventLoop 可重入）
     if (ddCode != QLatin1String("dd_inversion_data")) return;  // 仅 ERT 反演有网格数据
-    busy_ = true;
-    const std::string id = dsId.toStdString();
-    try {
+    if (gridLoad_) gridLoad_->abort();                          // abort-and-replace
+    data::GridLoad* load = repo_.loadGridAsync(dsId.toStdString());
+    gridLoad_ = load;
+    emit loadStarted(dsId, LoadPhase::Grid);
+    QObject::connect(load, &data::GridLoad::done, this,
+                     [this, load, dsId](const data::GridParts& parts) {
+        if (load != gridLoad_) return;                  // §5.0 句柄身份比对：丢弃迟到信号
+        gridLoad_.clear();
         GridData d;
         d.dsId = dsId;
-        // 网格数据：rows(服务端网格化,慢) + 色阶 type2 + 异常 queryException。
-        d.grid = repo_.loadGrid(id);
-        d.gridScale = repo_.loadColorScale(id);
-        d.anomalies = repo_.loadAnomalies(id);
-        busy_ = false;
+        d.grid = parts.grid;
+        d.gridScale = parts.gridScale;
+        d.anomalies = parts.anomalies;
         emit gridReady(d);
-    } catch (const std::exception& e) {
-        busy_ = false;
-        emit loadFailed(dsId, QString::fromStdString(e.what()));
-    } catch (...) {  // 非 std 异常(VTK/Qt)也必须复位 busy_，否则永久拒绝后续加载
-        busy_ = false;
-        emit loadFailed(dsId, QStringLiteral("未知错误"));
-    }
+    });
+    QObject::connect(load, &data::GridLoad::failed, this,
+                     [this, load, dsId](const QString& msg) {
+        if (load != gridLoad_) return;
+        gridLoad_.clear();
+        emit loadFailed(dsId, msg);
+    });
 }
 
 void DatasetDetailController::focusDataset(const QString& dsId) { emit focusRequested(dsId); }
diff --git a/src/controller/DatasetDetailController.hpp b/src/controller/DatasetDetailController.hpp
index a870647..e55a954 100644
--- a/src/controller/DatasetDetailController.hpp
+++ b/src/controller/DatasetDetailController.hpp
@@ -1,18 +1,21 @@
 #pragma once
 #include <string>
 #include <QObject>
+#include <QPointer>
 #include <QString>
 #include "model/Field.hpp"
 #include "model/ColorScale.hpp"
 #include "model/Anomaly.hpp"
-namespace geopro::data { class IDatasetRepository; }
+namespace geopro::data { class IAsyncDatasetRepository; class ChartLoad; class GridLoad; }
 namespace geopro::controller {
 
-// 数据详情编排：单击/双击数据集 → 拉 散点/网格/色阶/异常 → 发信号给详情面板。被动视图。
-// 仅服务图表，不与 WorkbenchNavController（项目/结构导航）耦合。
+// 数据详情编排：双击/网格页签 → 异步拉 散点/网格/色阶/异常 → 发信号给详情面板。被动视图。
 class DatasetDetailController : public QObject {
     Q_OBJECT
 public:
+    enum class LoadPhase { Chart, Grid };
+    Q_ENUM(LoadPhase)
+
     struct ChartData {
         QString dsId, ddCode;
         geopro::core::ScatterField scatter;
@@ -29,19 +32,20 @@ public:
         std::vector<geopro::core::Anomaly> anomalies;
     };
 
-    explicit DatasetDetailController(data::IDatasetRepository& repo, QObject* parent = nullptr);
+    explicit DatasetDetailController(data::IAsyncDatasetRepository& repo, QObject* parent = nullptr);
 public slots:
-    void openDataset(const QString& dsId, const QString& ddCode);  // 双击=新建/聚焦页
-    void focusDataset(const QString& dsId);                        // 单击=聚焦已开页
-    // 网格数据懒加载：网格页首次激活时调用（rows 服务端网格化 1-4s，故不随 openDataset 拉）。
+    void openDataset(const QString& dsId, const QString& ddCode);
+    void focusDataset(const QString& dsId);
     void loadGridData(const QString& dsId, const QString& ddCode);
 signals:
+    void loadStarted(const QString& dsId, LoadPhase phase);
     void chartReady(const ChartData& data);
     void gridReady(const GridData& data);
     void focusRequested(const QString& dsId);
     void loadFailed(const QString& dsId, const QString& message);
 private:
-    data::IDatasetRepository& repo_;
-    bool busy_ = false;
+    data::IAsyncDatasetRepository& repo_;
+    QPointer<data::ChartLoad> chartLoad_;
+    QPointer<data::GridLoad> gridLoad_;
 };
 }  // namespace geopro::controller
diff --git a/src/data/api/ApiDatasetRepository.cpp b/src/data/api/ApiDatasetRepository.cpp
index 94ebe8a..ad9ee39 100644
--- a/src/data/api/ApiDatasetRepository.cpp
+++ b/src/data/api/ApiDatasetRepository.cpp
@@ -1,51 +1,62 @@
 #include "api/ApiDatasetRepository.hpp"
-#include <stdexcept>
 #include <QJsonObject>
 #include <QString>
 #include <QUrl>
 #include "ApiClient.hpp"
+#include "ApiBatch.hpp"
+#include "api/DatasetLoadHandles.hpp"
 #include "dto/DatasetChartDto.hpp"
+
 namespace geopro::data {
 namespace {
+
 QString enc(const std::string& s) {
     return QString::fromUtf8(QUrl::toPercentEncoding(QString::fromStdString(s)));
 }
-void must(const net::ApiResponse& r, const char* what) {
-    if (r.code != 200) throw std::runtime_error(std::string(what) + " failed: " +
-        (r.msg.isEmpty() ? r.rawError.toStdString() : r.msg.toStdString()));
+
+// 失败判定（原 must() 口径）：业务码 != 200 或传输错误。
+bool isFailure(const geopro::net::ApiResponse& r) {
+    return r.code != 200 || !r.rawError.isEmpty();
 }
-geopro::core::ColorScale colorScale(net::ApiClient& api, const std::string& dsId, int type) {
-    QJsonObject body{{"dsObjectId", QString::fromStdString(dsId)}, {"businessCode", ""}, {"type", type}};
-    const net::ApiResponse r = api.postJson(QStringLiteral("/business/lvl/colorGradation/getDetail"), body);
-    must(r, "colorGradation");
-    return dto::parseColorBar(r.data);
+
+QJsonObject colorBody(const std::string& dsId, int type) {
+    return QJsonObject{{"dsObjectId", QString::fromStdString(dsId)}, {"businessCode", ""}, {"type", type}};
 }
+
 }  // namespace
 
 ApiDatasetRepository::ApiDatasetRepository(net::ApiClient& api) : api_(api) {}
 
-geopro::core::Grid ApiDatasetRepository::loadGrid(const std::string& dsId) {
-    const net::ApiResponse r = api_.get(
-        QStringLiteral("/business/dd/ert/inversion/rows/%1").arg(enc(dsId)));
-    must(r, "inversion/rows");
-    return dto::parseInversionGrid(r.data);
+ChartLoad* ApiDatasetRepository::loadChartAsync(const std::string& dsId) {
+    // index 0 = scatter(GET)，index 1 = 散点色阶 type1(POST)
+    QList<net::IApiCall*> calls{
+        api_.getAsync(QStringLiteral("/business/dd/ert/inversion/getErtRawDataScatterGraph/%1").arg(enc(dsId))),
+        api_.postJsonAsync(QStringLiteral("/business/lvl/colorGradation/getDetail"), colorBody(dsId, 1)),
+    };
+    auto* batch = new net::ApiBatch(calls, &isFailure);
+    return new ApiChartLoad(batch, [](const QList<net::ApiResponse>& r) {
+        ChartParts p;
+        p.scatter = dto::parseScatterGraph(r[0].data);
+        p.scatterScale = dto::parseColorBar(r[1].data);
+        return p;
+    });
 }
-geopro::core::ScatterField ApiDatasetRepository::loadScatter(const std::string& dsId) {
-    const net::ApiResponse r = api_.get(
-        QStringLiteral("/business/dd/ert/inversion/getErtRawDataScatterGraph/%1").arg(enc(dsId)));
-    must(r, "scatterGraph");
-    return dto::parseScatterGraph(r.data);
-}
-geopro::core::ColorScale ApiDatasetRepository::loadColorScale(const std::string& dsId) {
-    return colorScale(api_, dsId, 2);
-}
-geopro::core::ColorScale ApiDatasetRepository::loadScatterColorScale(const std::string& dsId) {
-    return colorScale(api_, dsId, 1);
-}
-std::vector<geopro::core::Anomaly> ApiDatasetRepository::loadAnomalies(const std::string& dsId) {
-    const net::ApiResponse r = api_.get(
-        QStringLiteral("/business/exception/queryException/%1").arg(enc(dsId)));
-    must(r, "queryException");
-    return dto::parseDatasetAnomalies(r.data.value(QStringLiteral("value")).toArray());
+
+GridLoad* ApiDatasetRepository::loadGridAsync(const std::string& dsId) {
+    // index 0 = rows(GET,慢)，1 = 色阶 type2(POST)，2 = 异常(GET)
+    QList<net::IApiCall*> calls{
+        api_.getAsync(QStringLiteral("/business/dd/ert/inversion/rows/%1").arg(enc(dsId))),
+        api_.postJsonAsync(QStringLiteral("/business/lvl/colorGradation/getDetail"), colorBody(dsId, 2)),
+        api_.getAsync(QStringLiteral("/business/exception/queryException/%1").arg(enc(dsId))),
+    };
+    auto* batch = new net::ApiBatch(calls, &isFailure);
+    return new ApiGridLoad(batch, [](const QList<net::ApiResponse>& r) {
+        GridParts p;
+        p.grid = dto::parseInversionGrid(r[0].data);
+        p.gridScale = dto::parseColorBar(r[1].data);
+        p.anomalies = dto::parseDatasetAnomalies(r[2].data.value(QStringLiteral("value")).toArray());
+        return p;
+    });
 }
+
 }  // namespace geopro::data
diff --git a/src/data/api/ApiDatasetRepository.hpp b/src/data/api/ApiDatasetRepository.hpp
index 617aaad..c341fca 100644
--- a/src/data/api/ApiDatasetRepository.hpp
+++ b/src/data/api/ApiDatasetRepository.hpp
@@ -1,18 +1,14 @@
 #pragma once
-#include "repo/IDatasetRepository.hpp"
+#include "repo/IAsyncDatasetRepository.hpp"
 namespace geopro::net { class ApiClient; }
 namespace geopro::data {
 
-// 真实 API 实现 IDatasetRepository（ERT 反演相关）。失败抛 std::runtime_error。
-class ApiDatasetRepository : public IDatasetRepository {
+// 真实 API 实现 IAsyncDatasetRepository（ERT 反演）。每次加载返回自管理句柄。
+class ApiDatasetRepository : public IAsyncDatasetRepository {
 public:
     explicit ApiDatasetRepository(net::ApiClient& api);
-    std::vector<GsNode> loadStructure() override { return {}; }  // 不经此仓储取结构
-    geopro::core::Grid loadGrid(const std::string& dsId) override;
-    geopro::core::ScatterField loadScatter(const std::string& dsId) override;
-    geopro::core::ColorScale loadColorScale(const std::string& dsId) override;        // type2 网格
-    geopro::core::ColorScale loadScatterColorScale(const std::string& dsId) override; // type1 原数据
-    std::vector<geopro::core::Anomaly> loadAnomalies(const std::string& dsId) override;
+    ChartLoad* loadChartAsync(const std::string& dsId) override;
+    GridLoad*  loadGridAsync(const std::string& dsId)  override;
 private:
     net::ApiClient& api_;
 };
diff --git a/tests/controller/test_dataset_detail_controller.cpp b/tests/controller/test_dataset_detail_controller.cpp
index f1b1b01..25d85ac 100644
--- a/tests/controller/test_dataset_detail_controller.cpp
+++ b/tests/controller/test_dataset_detail_controller.cpp
@@ -1,31 +1,81 @@
 #include <gtest/gtest.h>
 #include <QSignalSpy>
 #include "DatasetDetailController.hpp"
-#include "repo/IDatasetRepository.hpp"
+#include "repo/IAsyncDatasetRepository.hpp"
+#include "api/DatasetLoadHandles.hpp"
 using namespace geopro;
+
 namespace {
-struct StubRepo : data::IDatasetRepository {
-    bool fail = false;
-    std::vector<data::GsNode> loadStructure() override { return {}; }
-    core::Grid loadGrid(const std::string&) override { core::Grid g(2,2); g.x={0,1}; g.y={0,1}; return g; }
-    // openDataset 现只拉 scatter/scatterScale/anomalies（网格懒加载），失败路径由 loadScatter 抛出触发。
-    core::ScatterField loadScatter(const std::string&) override { if (fail) throw std::runtime_error("x"); return {}; }
-    core::ColorScale loadColorScale(const std::string&) override { return {}; }
-    core::ColorScale loadScatterColorScale(const std::string&) override { return {}; }
-    std::vector<core::Anomaly> loadAnomalies(const std::string&) override { return {}; }
+// 桩句柄：不声明 Q_OBJECT —— 发射继承自 data::ChartLoad/GridLoad 的信号、override abort。
+struct StubChartLoad : data::ChartLoad {
+    bool aborted = false;
+    void abort() override { aborted = true; }
+    void fireDone() { emit done(data::ChartParts{}); }
+    void fireFailed() { emit failed(QStringLiteral("x")); }
+};
+struct StubGridLoad : data::GridLoad {
+    bool aborted = false;
+    void abort() override { aborted = true; }
+    void fireDone() { emit done(data::GridParts{}); }
+};
+struct StubAsyncRepo : data::IAsyncDatasetRepository {
+    StubChartLoad* lastChart = nullptr;
+    StubGridLoad* lastGrid = nullptr;
+    data::ChartLoad* loadChartAsync(const std::string&) override {
+        lastChart = new StubChartLoad; return lastChart;
+    }
+    data::GridLoad* loadGridAsync(const std::string&) override {
+        lastGrid = new StubGridLoad; return lastGrid;
+    }
 };
 }
-TEST(DatasetDetailController, EmitsChartReadyOnSuccess) {
-    StubRepo repo;
+
+TEST(DatasetDetailController, EmitsChartReadyOnDone) {
+    StubAsyncRepo repo;
     controller::DatasetDetailController c(repo);
     QSignalSpy spy(&c, &controller::DatasetDetailController::chartReady);
     c.openDataset("ds1", "dd_inversion_data");
+    repo.lastChart->fireDone();
     EXPECT_EQ(spy.count(), 1);
 }
-TEST(DatasetDetailController, EmitsLoadFailedOnThrow) {
-    StubRepo repo; repo.fail = true;
+
+TEST(DatasetDetailController, EmitsLoadFailedOnFailed) {
+    StubAsyncRepo repo;
     controller::DatasetDetailController c(repo);
     QSignalSpy spy(&c, &controller::DatasetDetailController::loadFailed);
     c.openDataset("ds1", "dd_inversion_data");
+    repo.lastChart->fireFailed();
+    EXPECT_EQ(spy.count(), 1);
+}
+
+TEST(DatasetDetailController, UnsupportedTypeFailsImmediately) {
+    StubAsyncRepo repo;
+    controller::DatasetDetailController c(repo);
+    QSignalSpy spy(&c, &controller::DatasetDetailController::loadFailed);
+    c.openDataset("ds1", "dd_other");
+    EXPECT_EQ(spy.count(), 1);
+    EXPECT_EQ(repo.lastChart, nullptr);   // 未发起加载
+}
+
+TEST(DatasetDetailController, AbortsPreviousOnReopen) {
+    StubAsyncRepo repo;
+    controller::DatasetDetailController c(repo);
+    c.openDataset("dsA", "dd_inversion_data");
+    StubChartLoad* a = repo.lastChart;
+    c.openDataset("dsB", "dd_inversion_data");   // 替换
+    EXPECT_TRUE(a->aborted);                      // 旧句柄被 abort
+}
+
+TEST(DatasetDetailController, DropsLateSignalFromAbortedLoad) {
+    StubAsyncRepo repo;
+    controller::DatasetDetailController c(repo);
+    QSignalSpy spy(&c, &controller::DatasetDetailController::chartReady);
+    c.openDataset("dsA", "dd_inversion_data");
+    StubChartLoad* a = repo.lastChart;
+    c.openDataset("dsB", "dd_inversion_data");
+    StubChartLoad* b = repo.lastChart;
+    a->fireDone();                 // 旧句柄迟到 → 身份比对丢弃
+    EXPECT_EQ(spy.count(), 0);
+    b->fireDone();                 // 当前句柄 → 正常
     EXPECT_EQ(spy.count(), 1);
 }