diff --git a/src/main/resources/views/platform/zhgh/activity/sports/applyUser/applyUser.js b/src/main/resources/views/platform/zhgh/activity/sports/applyUser/applyUser.js
index 2da744b..c2aa6f1 100644
--- a/src/main/resources/views/platform/zhgh/activity/sports/applyUser/applyUser.js
+++ b/src/main/resources/views/platform/zhgh/activity/sports/applyUser/applyUser.js
@@ -703,9 +703,12 @@ var ACTIVITY_SPORTS_APPLY_USER = {
             const groupData = groupBy(aa, (v) => {
                 return v.userId
             })
-            const cc = groupData.filter((v) => {
-                if (v.length >= this.eventData.restrictRegNumber) return v
-            })
+            // 未配置限报数时不限制单项报名，避免 null 被 JavaScript 当作 0 比较。
+            const hasSingleEventLimit = this.activityTableData.eveProjectType === '1' &&
+                Number.isInteger(this.eventData.restrictRegNumber) && this.eventData.restrictRegNumber >= 0
+            const cc = hasSingleEventLimit ? groupData.filter((v) => {
+                return v.length >= this.eventData.restrictRegNumber
+            }) : []
 
             //从全部人员里找出右边框选择的人
             const arr = this.userList.filter((v) => {
@@ -738,7 +741,7 @@ var ACTIVITY_SPORTS_APPLY_USER = {
                 this.applyUserList.push(data)
 
                 //如果是单项判断每个人可以报几项
-                if (this.eventData.restrictRegNumber >= 0 && this.activityTableData.eveProjectType === '1') {
+                if (hasSingleEventLimit) {
                     cc.forEach((z) => {
                         if (z[0]) {
                             const index = this.applyUserList.findIndex((x) => x.userId === z[0].userId && x.id === null)
@@ -751,7 +754,7 @@ var ACTIVITY_SPORTS_APPLY_USER = {
             })
 
             //如果是单项判断每个人可以报几项
-            if (this.eventData.restrictRegNumber >= 0 && this.activityTableData.eveProjectType === '1') {
+            if (hasSingleEventLimit) {
                 const usernames = cc.map((v) => v[0].username).join(",")
                 if (usernames) {
                     this.$notify({