diff --git a/src/app/OlMap/Controls/HistoryDataPanel.tsx b/src/app/OlMap/Controls/HistoryDataPanel.tsx
index aa63af2..2588164 100644
--- a/src/app/OlMap/Controls/HistoryDataPanel.tsx
+++ b/src/app/OlMap/Controls/HistoryDataPanel.tsx
@@ -608,6 +608,7 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
               type: "line",
               symbol: "none",
               sampling: "lttb",
+              connectNulls: true,
               itemStyle: {
                 color: colors[(index * 4 + sIndex) % colors.length],
               },
@@ -635,6 +636,7 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
             type: "line",
             symbol: "none",
             sampling: "lttb",
+            connectNulls: true,
             itemStyle: { color: colors[index % colors.length] },
             data: dataset.map((item) => item[id]),
             areaStyle: {
diff --git a/src/components/olmap/SCADADataPanel.tsx b/src/components/olmap/SCADADataPanel.tsx
index b785233..9cefff5 100644
--- a/src/components/olmap/SCADADataPanel.tsx
+++ b/src/components/olmap/SCADADataPanel.tsx
@@ -718,8 +718,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
             {
               name: `${id} (原始)`,
               type: "line",
-              showSymbol: true,
-              symbolSize: 4,
+              symbol: "none",
+              connectNulls: true,
               sampling: "lttb",
               itemStyle: { color: colors[index % colors.length] },
               data: dataset.map((item) => item[`${id}_raw`]),
@@ -727,8 +727,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
             {
               name: `${id} (清洗)`,
               type: "line",
-              showSymbol: true,
-              symbolSize: 4,
+              symbol: "none",
+              connectNulls: true,
               sampling: "lttb",
               itemStyle: { color: colors[(index + 3) % colors.length] },
               data: dataset.map((item) => item[`${id}_clean`]),
@@ -736,8 +736,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
             {
               name: `${id} (模拟)`,
               type: "line",
-              showSymbol: true,
-              symbolSize: 4,
+              symbol: "none",
+              connectNulls: true,
               sampling: "lttb",
               itemStyle: { color: colors[(index + 6) % colors.length] },
               data: dataset.map((item) => item[`${id}_sim`]),
@@ -747,8 +747,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
           return deviceIds.map((id, index) => ({
             name: id,
             type: "line",
-            showSymbol: true,
-            symbolSize: 4,
+            symbol: "none",
+            connectNulls: true,
             sampling: "lttb",
             itemStyle: { color: colors[index % colors.length] },
             data: dataset.map((item) => item[`${id}_${selectedSource}`]),
@@ -772,8 +772,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
                     : "模拟"
                 })`,
                 type: "line",
-                showSymbol: true,
-                symbolSize: 4,
+                symbol: "none",
+                connectNulls: true,
                 sampling: "lttb",
                 itemStyle: {
                   color: colors[(index * 3 + sIndex) % colors.length],
@@ -800,8 +800,8 @@ const SCADADataPanel: React.FC<SCADADataPanelProps> = ({
             series.push({
               name: id,
               type: "line",
-              showSymbol: true,
-              symbolSize: 4,
+              symbol: "none",
+              connectNulls: true,
               sampling: "lttb",
               itemStyle: { color: colors[index % colors.length] },
               data: dataset.map((item) => item[id]),