diff --git a/dist/datav.map.js b/dist/datav.map.js
index f35d57d..d7368ba 100644
--- a/dist/datav.map.js
+++ b/dist/datav.map.js
@@ -23125,10 +23125,18 @@
           rowsData
         } = this;
         const {
-          columnWidth
+          columnWidth,
+          header
         } = mergedConfig;
         const usedWidth = columnWidth.reduce((all, w) => all + w, 0);
-        const columnNum = rowsData[0] ? rowsData[0].ceils.length : 0;
+        let columnNum = 0;
+
+        if (rowsData[0]) {
+          columnNum = rowsData[0].ceils.length;
+        } else if (header.length) {
+          columnNum = header.length;
+        }
+
         const avgWidth = (width - usedWidth) / (columnNum - columnWidth.length);
         const widths = new Array(columnNum).fill(avgWidth);
         this.widths = util_2$1(widths, columnWidth);
@@ -23319,7 +23327,7 @@
     /* style */
     const __vue_inject_styles__$u = function (inject) {
       if (!inject) return
-      inject("data-v-87495252_0", { source: ".dv-scroll-board {\n  position: relative;\n  width: 100%;\n  height: 100%;\n  color: #fff;\n}\n.dv-scroll-board .text {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .header {\n  display: flex;\n  flex-direction: row;\n  font-size: 15px;\n}\n.dv-scroll-board .header .header-item {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows {\n  overflow: hidden;\n}\n.dv-scroll-board .rows .row-item {\n  display: flex;\n  font-size: 14px;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows .ceil {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .rows .index {\n  border-radius: 3px;\n  padding: 0px 3px;\n}\n", map: {"version":3,"sources":["main.vue"],"names":[],"mappings":"AAAA;EACE,kBAAkB;EAClB,WAAW;EACX,YAAY;EACZ,WAAW;AACb;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;AACzB;AACA;EACE,aAAa;EACb,mBAAmB;EACnB,eAAe;AACjB;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;EACvB,oBAAoB;AACtB;AACA;EACE,gBAAgB;AAClB;AACA;EACE,aAAa;EACb,eAAe;EACf,oBAAoB;AACtB;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;AACzB;AACA;EACE,kBAAkB;EAClB,gBAAgB;AAClB","file":"main.vue","sourcesContent":[".dv-scroll-board {\n  position: relative;\n  width: 100%;\n  height: 100%;\n  color: #fff;\n}\n.dv-scroll-board .text {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .header {\n  display: flex;\n  flex-direction: row;\n  font-size: 15px;\n}\n.dv-scroll-board .header .header-item {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows {\n  overflow: hidden;\n}\n.dv-scroll-board .rows .row-item {\n  display: flex;\n  font-size: 14px;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows .ceil {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .rows .index {\n  border-radius: 3px;\n  padding: 0px 3px;\n}\n"]}, media: undefined });
+      inject("data-v-309bd8aa_0", { source: ".dv-scroll-board {\n  position: relative;\n  width: 100%;\n  height: 100%;\n  color: #fff;\n}\n.dv-scroll-board .text {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .header {\n  display: flex;\n  flex-direction: row;\n  font-size: 15px;\n}\n.dv-scroll-board .header .header-item {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows {\n  overflow: hidden;\n}\n.dv-scroll-board .rows .row-item {\n  display: flex;\n  font-size: 14px;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows .ceil {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .rows .index {\n  border-radius: 3px;\n  padding: 0px 3px;\n}\n", map: {"version":3,"sources":["main.vue"],"names":[],"mappings":"AAAA;EACE,kBAAkB;EAClB,WAAW;EACX,YAAY;EACZ,WAAW;AACb;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;AACzB;AACA;EACE,aAAa;EACb,mBAAmB;EACnB,eAAe;AACjB;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;EACvB,oBAAoB;AACtB;AACA;EACE,gBAAgB;AAClB;AACA;EACE,aAAa;EACb,eAAe;EACf,oBAAoB;AACtB;AACA;EACE,eAAe;EACf,sBAAsB;EACtB,mBAAmB;EACnB,gBAAgB;EAChB,uBAAuB;AACzB;AACA;EACE,kBAAkB;EAClB,gBAAgB;AAClB","file":"main.vue","sourcesContent":[".dv-scroll-board {\n  position: relative;\n  width: 100%;\n  height: 100%;\n  color: #fff;\n}\n.dv-scroll-board .text {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .header {\n  display: flex;\n  flex-direction: row;\n  font-size: 15px;\n}\n.dv-scroll-board .header .header-item {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows {\n  overflow: hidden;\n}\n.dv-scroll-board .rows .row-item {\n  display: flex;\n  font-size: 14px;\n  transition: all 0.3s;\n}\n.dv-scroll-board .rows .ceil {\n  padding: 0 10px;\n  box-sizing: border-box;\n  white-space: nowrap;\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n.dv-scroll-board .rows .index {\n  border-radius: 3px;\n  padding: 0px 3px;\n}\n"]}, media: undefined });
 
     };
     /* scoped */
diff --git a/lib/components/scrollBoard/src/main.vue b/lib/components/scrollBoard/src/main.vue
index 6b9548b..88d0ef1 100644
--- a/lib/components/scrollBoard/src/main.vue
+++ b/lib/components/scrollBoard/src/main.vue
@@ -260,11 +260,16 @@ export default {
     calcWidths () {
       const { width, mergedConfig, rowsData } = this
 
-      const { columnWidth } = mergedConfig
+      const { columnWidth, header } = mergedConfig
 
       const usedWidth = columnWidth.reduce((all, w) => all + w, 0)
 
-      const columnNum = rowsData[0] ? rowsData[0].ceils.length : 0
+      let columnNum = 0
+      if (rowsData[0]) {
+        columnNum = rowsData[0].ceils.length
+      } else if (header.length) {
+        columnNum = header.length
+      }
 
       const avgWidth = (width - usedWidth) / (columnNum - columnWidth.length)