diff --git a/i18n/lang/en.json b/i18n/lang/en.json
index c0fbd30..2be0d98 100644
--- a/i18n/lang/en.json
+++ b/i18n/lang/en.json
@@ -261,7 +261,7 @@
     "c3": "Buy",
     "c4": "Sell",
     "c5": "Quantity",
-    "c6": "Best market transaction",
+    "c6": "Market price",
     "c7": "Total Price",
     "c8": "Available Quantity",
     "c9": "Total Value",
@@ -750,7 +750,7 @@
       "a3":"TP/SL for position",
       "a4":"Best market transaction",
       "a5":"Positions",
-      "a6":"Order management",
+      "a6":"Order Management",
       "a7":"Open Orders",
       "a8":"Order History",
       "a9":"multiple",
diff --git a/pages/exchange/open-position.vue b/pages/exchange/open-position.vue
index a1b72c8..5e00dc7 100644
--- a/pages/exchange/open-position.vue
+++ b/pages/exchange/open-position.vue
@@ -115,8 +115,9 @@
               <v-input
                 v-if="form.type == 1"
                 disabled
-                :value='$t("first.a4")'
-                class="h-30 p-y-xxs rounded fn-center color-light bg-form-panel-3 p-x-xs"
+                :value='$t("exchange.c6")'
+                class="h-30 p-y-xxs rounded fn-center bg-form-panel-3 p-x-xs"
+								style="color: grey;"
               ></v-input>
             </view>
             <view>
@@ -866,13 +867,26 @@ export default {
         // #ifdef APP-PLUS
         return plus.os.name
         // #endif
-    }
+    },
+		marginCheck(){
+			return parseInt(this.margin);
+		}
   },
   watch: {
-	maxNum(n){
-		this.form.amount = Math.round((this.maxNum * this.sliderActive1) / 100);
-		this.margin=(this.form.amount/this.form.lever_rate)
-	},
+		marginCheck: {
+			handler(n){
+				// console.log(n, '-1----');
+				if(n===0){
+					this.margin = '';
+					// console.log(this.margin, '--2---');
+				}
+			},
+			immediate: true
+		},
+		maxNum(n){
+			this.form.amount = Math.round((this.maxNum * this.sliderActive1) / 100);
+			this.margin=(this.form.amount/this.form.lever_rate)
+		},
     symbol() {
       this.$emit("symbols",this.symbol)
       if (this.unSymbol) {