diff --git a/README.md b/README.md
index 2de2d67..5fc47db 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,8 @@ Data.loadDayData(this, 0) { kEntities: List<IKEntity> ->
 |highlightLabelLeft|长按时高亮线左侧标签配置|
 |highlightLabelRight|长按时高亮线右侧标签配置|
 |barSpaceRatio|柱子之间的空间占比柱子宽度|
+|volumeChartType|柱子样式|
+|hollowChartLineStrokeWidth|柱子空心时的线条宽度|
 
 ##### MACD指标图配置`MacdChartConfig`
 |字段|描述|
diff --git a/lib/src/main/java/com/github/wangyiqian/stockchart/Default.kt b/lib/src/main/java/com/github/wangyiqian/stockchart/Default.kt
index 8fa3eb3..f2dbb39 100644
--- a/lib/src/main/java/com/github/wangyiqian/stockchart/Default.kt
+++ b/lib/src/main/java/com/github/wangyiqian/stockchart/Default.kt
@@ -92,6 +92,7 @@ val DEFAULT_AVG_LINE_COLOR = Color.parseColor("#FF7B11")
 
 // Volume图
 const val DEFAULT_VOLUME_BAR_SPACE_RATIO = 0.5f
+const val DEFAULT_VOLUME_CHART_HOLLOW_CHART_LINE_STROKE_WIDTH = 1.5f
 
 // HighlightLabel
 const val DEFAULT_HIGHLIGHT_LABEL_BG_COLOR = Color.LTGRAY
diff --git a/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChart.kt b/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChart.kt
index d1ded8f..aa96a4e 100644
--- a/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChart.kt
+++ b/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChart.kt
@@ -54,9 +54,21 @@ class VolumeChart(
     override fun drawBackground(canvas: Canvas) {
     }
 
-    override fun preDrawData(canvas: Canvas) {}
+    override fun preDrawData(canvas: Canvas) {
+    }
 
     override fun drawData(canvas: Canvas) {
+        when (chartConfig.volumeChartType) {
+            is VolumeChartConfig.VolumeChartType.CANDLE -> {
+                drawVolumeChart(canvas, false)
+            }
+            is VolumeChartConfig.VolumeChartType.HOLLOW -> {
+                drawVolumeChart(canvas, true)
+            }
+        }
+    }
+
+    private fun drawVolumeChart(canvas: Canvas, isHollow: Boolean) {
         val barWidth = 1 * (1 - chartConfig.barSpaceRatio)
         val spaceWidth = 1 * chartConfig.barSpaceRatio
         var left = spaceWidth / 2f
@@ -80,6 +92,12 @@ class VolumeChart(
                 }
                 volumePaint.color =
                     if (isRise) stockChart.getConfig().riseColor else stockChart.getConfig().downColor
+                volumePaint.strokeWidth = chartConfig.hollowChartLineStrokeWidth
+                if (kEntity.getClosePrice() >= kEntity.getOpenPrice() && isHollow) { // 空心
+                    volumePaint.style = Paint.Style.STROKE
+                } else {
+                    volumePaint.style = Paint.Style.FILL
+                }
 
                 tmpRectF.left = left
                 tmpRectF.top = kEntity.getVolume().toFloat()
diff --git a/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChartConfig.kt b/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChartConfig.kt
index 3ea2080..9c0ca7f 100644
--- a/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChartConfig.kt
+++ b/lib/src/main/java/com/github/wangyiqian/stockchart/childchart/volumechart/VolumeChartConfig.kt
@@ -29,12 +29,16 @@ class VolumeChartConfig(
     onHighlightListener: OnHighlightListener? = null,
     chartMainDisplayAreaPaddingTop: Float = 0f,
     chartMainDisplayAreaPaddingBottom: Float = 0f,
+    // 柱子样式
+    var volumeChartType: VolumeChartType = VolumeChartType.CANDLE(),
     // 长按时高亮线左侧标签配置
     var highlightLabelLeft: HighlightLabelConfig? = null,
     // 长按时高亮线右侧标签配置
     var highlightLabelRight: HighlightLabelConfig? = null,
     // 柱子之间的空间占比柱子宽度
-    var barSpaceRatio: Float = DEFAULT_VOLUME_BAR_SPACE_RATIO
+    var barSpaceRatio: Float = DEFAULT_VOLUME_BAR_SPACE_RATIO,
+    // 柱子空心时的线条宽度
+    var hollowChartLineStrokeWidth: Float = DEFAULT_VOLUME_CHART_HOLLOW_CHART_LINE_STROKE_WIDTH
 ) : BaseChildChartConfig(
     height,
     marginTop,
@@ -42,4 +46,13 @@ class VolumeChartConfig(
     onHighlightListener,
     chartMainDisplayAreaPaddingTop,
     chartMainDisplayAreaPaddingBottom
-)
\ No newline at end of file
+) {
+
+    sealed class VolumeChartType {
+        // 实心
+        class CANDLE : VolumeChartType()
+        // 空心
+        class HOLLOW : VolumeChartType()
+    }
+
+}
\ No newline at end of file
diff --git a/samples/build.gradle b/samples/build.gradle
index fdb9504..c4aec8f 100644
--- a/samples/build.gradle
+++ b/samples/build.gradle
@@ -70,6 +70,6 @@ dependencies {
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
     implementation 'com.google.android:flexbox:2.0.1'
 
-//    implementation project(':lib')
-    implementation 'com.github.wangyiqian:StockChart:1.0.12'
+    implementation project(':lib')
+//    implementation 'com.github.wangyiqian:StockChart:1.0.12'
 }
\ No newline at end of file
diff --git a/samples/src/main/java/com/github/wangyiqian/stockchart/sample/sample2/Sample2Activity.kt b/samples/src/main/java/com/github/wangyiqian/stockchart/sample/sample2/Sample2Activity.kt
index 76f7f25..ba9972f 100644
--- a/samples/src/main/java/com/github/wangyiqian/stockchart/sample/sample2/Sample2Activity.kt
+++ b/samples/src/main/java/com/github/wangyiqian/stockchart/sample/sample2/Sample2Activity.kt
@@ -535,6 +535,8 @@ class Sample2Activity : AppCompatActivity() {
 
         this.kChartType = kChartType
         kChartConfig.kChartType = this.kChartType
+        // 成交量图根据K线图类型决定是空心还是实现
+        volumeChartConfig.volumeChartType = if(this.kChartType is KChartConfig.KChartType.HOLLOW) VolumeChartConfig.VolumeChartType.HOLLOW() else VolumeChartConfig.VolumeChartType.CANDLE()
         stock_chart.notifyChanged()
         refreshOptionButtonsState()
     }