diff --git a/Assets/XCharts/Runtime/Component/Main/Radar.cs b/Assets/XCharts/Runtime/Component/Main/Radar.cs
index 3142c796..ed8ddaa8 100644
--- a/Assets/XCharts/Runtime/Component/Main/Radar.cs
+++ b/Assets/XCharts/Runtime/Component/Main/Radar.cs
@@ -202,6 +202,7 @@ namespace XCharts
         /// </summary>
         public List<Indicator> indicatorList { get { return m_IndicatorList; } }
 
+        public int index { get; internal set; }
         /// <summary>
         /// the center position of radar in container.
         /// 雷达图在容器中的具体中心点。
diff --git a/Assets/XCharts/Runtime/Internal/Helper/TooltipHelper.cs b/Assets/XCharts/Runtime/Internal/Helper/TooltipHelper.cs
index 758269c7..bcb041c3 100644
--- a/Assets/XCharts/Runtime/Internal/Helper/TooltipHelper.cs
+++ b/Assets/XCharts/Runtime/Internal/Helper/TooltipHelper.cs
@@ -83,8 +83,11 @@ namespace XCharts
         public static void InitRadarTooltip(ref StringBuilder sb, Tooltip tooltip, Serie serie, Radar radar,
             ThemeInfo themeInfo)
         {
+            if (!serie.show) return;
+            if (serie.radarIndex != radar.index) return;
             var dataIndex = tooltip.runtimeDataIndex[1];
             var serieData = serie.GetSerieData(dataIndex);
+            if (!serieData.show) return;
             var numericFormatter = GetItemNumericFormatter(tooltip, serie, serieData);
             switch (serie.radarType)
             {
@@ -99,7 +102,7 @@ namespace XCharts
                         for (int i = 0; i < serie.dataCount; i++)
                         {
                             var sd = serie.GetSerieData(i);
-
+                            if (!sd.show) continue;
                             var key = sd.name;
                             var value = sd.GetData(dimension);
                             var itemFormatter = GetItemFormatter(tooltip, serie, sd);
@@ -109,15 +112,11 @@ namespace XCharts
                             sb.Append("<color=#").Append(themeInfo.GetColorStr(i)).Append(">● </color>");
                             if (string.IsNullOrEmpty(itemFormatter))
                             {
+                                if (string.IsNullOrEmpty(key)) key = radar.indicatorList[dataIndex].name;
                                 if (string.IsNullOrEmpty(key))
-                                {
-                                    //key = radar.indicatorList[dataIndex].name;
                                     sb.AppendFormat("{0}\n", ChartCached.FloatToStr(value, numericFormatter));
-                                }
                                 else
-                                {
                                     sb.AppendFormat("{0}: {1}\n", key, ChartCached.FloatToStr(value, numericFormatter));
-                                }
                             }
                             else
                             {
diff --git a/Assets/XCharts/Runtime/RadarChart.cs b/Assets/XCharts/Runtime/RadarChart.cs
index fe751cc2..1b1eb9bd 100644
--- a/Assets/XCharts/Runtime/RadarChart.cs
+++ b/Assets/XCharts/Runtime/RadarChart.cs
@@ -156,8 +156,10 @@ namespace XCharts
         protected override void DrawChart(VertexHelper vh)
         {
             base.DrawChart(vh);
-            foreach (var radar in m_Radars)
+            for (int i = 0; i < m_Radars.Count; i++)
             {
+                var radar = m_Radars[i];
+                radar.index = i;
                 radar.UpdateRadarCenter(chartPosition, chartWidth, chartHeight);
                 if (radar.shape == Radar.Shape.Circle)
                 {
@@ -269,8 +271,7 @@ namespace XCharts
                 {
                     continue;
                 }
-                var isHighlight = serie.highlighted || serieData.highlighted ||
-                    (m_Tooltip.show && m_Tooltip.runtimeDataIndex[0] == i && m_Tooltip.runtimeDataIndex[1] == j);
+                var isHighlight = IsHighlight(radar, serie, serieData, j, 0);
                 var areaColor = SerieHelper.GetAreaColor(serie, m_ThemeInfo, serieIndex, isHighlight);
                 var areaToColor = SerieHelper.GetAreaToColor(serie, m_ThemeInfo, serieIndex, isHighlight);
                 var lineColor = SerieHelper.GetLineColor(serie, m_ThemeInfo, serieIndex, isHighlight);
@@ -322,13 +323,15 @@ namespace XCharts
                 }
                 if (serie.symbol.show && serie.symbol.type != SerieSymbolType.None)
                 {
-                    var symbolSize = (isHighlight ? serie.symbol.selectedSize : serie.symbol.size);
-                    var symbolColor = SerieHelper.GetItemColor(serie, serieData, m_ThemeInfo, serieIndex, isHighlight);
-                    var symbolToColor = SerieHelper.GetItemToColor(serie, serieData, m_ThemeInfo, serieIndex, isHighlight);
-                    var symbolBorder = SerieHelper.GetSymbolBorder(serie, serieData, isHighlight);
-                    var cornerRadius = SerieHelper.GetSymbolCornerRadius(serie, serieData, isHighlight);
-                    foreach (var point in pointList)
+                    for (int m = 0; m < pointList.Count; m++)
                     {
+                        var point = pointList[m];
+                        isHighlight = IsHighlight(radar, serie, serieData, j, m);
+                        var symbolSize = (isHighlight ? serie.symbol.selectedSize : serie.symbol.size);
+                        var symbolColor = SerieHelper.GetItemColor(serie, serieData, m_ThemeInfo, serieIndex, isHighlight);
+                        var symbolToColor = SerieHelper.GetItemToColor(serie, serieData, m_ThemeInfo, serieIndex, isHighlight);
+                        var symbolBorder = SerieHelper.GetSymbolBorder(serie, serieData, isHighlight);
+                        var cornerRadius = SerieHelper.GetSymbolCornerRadius(serie, serieData, isHighlight);
                         DrawSymbol(vh, serie.symbol.type, symbolSize, symbolBorder, point, symbolColor,
                            symbolToColor, serie.symbol.gap, cornerRadius);
                     }
@@ -345,6 +348,31 @@ namespace XCharts
             }
         }
 
+        private bool IsHighlight(Radar radar, Serie serie, SerieData serieData, int dataIndex, int dimension)
+        {
+            if (serie.highlighted || serieData.highlighted) return true;
+            if (!m_Tooltip.show) return false;
+            var selectedSerieIndex = m_Tooltip.runtimeDataIndex[0];
+            if (selectedSerieIndex < 0) return false;
+            if (m_Series.GetSerie(selectedSerieIndex).radarIndex != serie.radarIndex) return false;
+            switch (serie.radarType)
+            {
+                case RadarType.Multiple:
+                    if (radar.isAxisTooltip)
+                    {
+                        var selectedDimension = tooltip.runtimeDataIndex[2];
+                        return selectedDimension == dimension;
+                    }
+                    else
+                    {
+                        return m_Tooltip.runtimeDataIndex[0] == serie.index && m_Tooltip.runtimeDataIndex[1] == dataIndex;
+                    }
+                case RadarType.Single:
+                    return m_Tooltip.runtimeDataIndex[1] == dataIndex;
+            }
+            return false;
+        }
+
         private void DrawSingleRadar(VertexHelper vh, Serie serie, int i)
         {
             var startPoint = Vector3.zero;
@@ -403,8 +431,7 @@ namespace XCharts
                     serieData.labelPosition = Vector3.zero;
                     continue;
                 }
-                var isHighlight = serie.highlighted || serieData.highlighted ||
-                    (m_Tooltip.show && m_Tooltip.runtimeDataIndex[0] == i && m_Tooltip.runtimeDataIndex[1] == j);
+                var isHighlight = IsHighlight(radar, serie, serieData, j, 0);
                 var areaColor = SerieHelper.GetAreaColor(serie, m_ThemeInfo, serieIndex, isHighlight);
                 var areaToColor = SerieHelper.GetAreaToColor(serie, m_ThemeInfo, serieIndex, isHighlight);
                 var lineColor = SerieHelper.GetLineColor(serie, m_ThemeInfo, serieIndex, isHighlight);
@@ -620,7 +647,7 @@ namespace XCharts
             if (m_IsEnterLegendButtom) return;
 
             bool highlight = false;
-            //m_Tooltip.ClearValue();
+            m_Tooltip.ClearValue();
             for (int i = 0; i < m_Series.Count; i++)
             {
                 if (!IsActive(i)) continue;