diff --git a/bonus-modules/bonus-material/src/main/java/com/bonus/material/lease/service/impl/LeaseApplyInfoServiceImpl.java b/bonus-modules/bonus-material/src/main/java/com/bonus/material/lease/service/impl/LeaseApplyInfoServiceImpl.java
index 21f8eee5..6ede5f0f 100644
--- a/bonus-modules/bonus-material/src/main/java/com/bonus/material/lease/service/impl/LeaseApplyInfoServiceImpl.java
+++ b/bonus-modules/bonus-material/src/main/java/com/bonus/material/lease/service/impl/LeaseApplyInfoServiceImpl.java
@@ -363,7 +363,9 @@ public class LeaseApplyInfoServiceImpl implements ILeaseApplyInfoService {
 
                 // 电子签名进行base64拼接
                 if (StringUtils.isNotBlank(info.getLeaseSignUrl())) {
-                    info.setLeaseSignUrl("data:image/png;base64," + info.getLeaseSignUrl());
+                    if (!info.getLeaseSignUrl().startsWith("http")) {
+                        info.setLeaseSignUrl("data:image/png;base64," + info.getLeaseSignUrl());
+                    }
                 }
                 /** 设置发料单位  防止代码冲突  **/
 
@@ -388,7 +390,9 @@ public class LeaseApplyInfoServiceImpl implements ILeaseApplyInfoService {
                     if (!CollectionUtils.isEmpty(approveSignList)) {
                         for (LeaseOutSign leaseOutSign : approveSignList) {
                             if (StringUtils.isNotBlank(leaseOutSign.getOutSignUrl())) {
-                                leaseOutSign.setOutSignUrl("data:image/png;base64," + leaseOutSign.getOutSignUrl());
+                                if (!leaseOutSign.getOutSignUrl().startsWith("http")) {
+                                    leaseOutSign.setOutSignUrl("data:image/png;base64," + leaseOutSign.getOutSignUrl());
+                                }
                             }
                         }
                         leaseApplyRequestVo.setApproveSignList(approveSignList);
@@ -400,7 +404,9 @@ public class LeaseApplyInfoServiceImpl implements ILeaseApplyInfoService {
                 if (!CollectionUtils.isEmpty(outSignList)) {
                     for (LeaseOutSign applyInfo : outSignList) {
                         if (StringUtils.isNotBlank(applyInfo.getOutSignUrl())) {
-                            applyInfo.setOutSignUrl("data:image/png;base64," + applyInfo.getOutSignUrl());
+                            if (!applyInfo.getOutSignUrl().startsWith("http")) {
+                                applyInfo.setOutSignUrl("data:image/png;base64," + applyInfo.getOutSignUrl());
+                            }
                         }
                     }
                     leaseApplyRequestVo.setKgSignList(outSignList);
@@ -410,7 +416,11 @@ public class LeaseApplyInfoServiceImpl implements ILeaseApplyInfoService {
                     bean.setConfirmPerson(details.get(0).getConfirmPerson());
                     LeaseConfirmSign confirmSign = leaseApplyInfoMapper.getLeaseConfirmSign(bean);
                     if(confirmSign != null){
-                        confirmSign.setConfirmSignUrl("data:image/png;base64," + confirmSign.getConfirmSignUrl());
+                        if (StringUtils.isNotBlank(confirmSign.getConfirmSignUrl())) {
+                            if (!confirmSign.getConfirmSignUrl().startsWith("http")) {
+                                confirmSign.setConfirmSignUrl("data:image/png;base64," + confirmSign.getConfirmSignUrl());
+                            }
+                        }
                         leaseApplyRequestVo.setConfirmSign(confirmSign);
                     }
                 }
@@ -420,7 +430,9 @@ public class LeaseApplyInfoServiceImpl implements ILeaseApplyInfoService {
             if (!CollectionUtils.isEmpty(signList)) {
                 for (LeaseOutSign applyInfo : signList) {
                     if (StringUtils.isNotBlank(applyInfo.getOutSignUrl())) {
-                        applyInfo.setOutSignUrl("data:image/png;base64," + applyInfo.getOutSignUrl());
+                        if (!applyInfo.getOutSignUrl().startsWith("http")) {
+                            applyInfo.setOutSignUrl("data:image/png;base64," + applyInfo.getOutSignUrl());
+                        }
                     }
                 }
                 leaseApplyRequestVo.setOutSignList(signList);
diff --git a/bonus-modules/bonus-material/src/main/java/com/bonus/material/materialStation/service/impl/ProAuthorizeServiceImpl.java b/bonus-modules/bonus-material/src/main/java/com/bonus/material/materialStation/service/impl/ProAuthorizeServiceImpl.java
index 9f441601..d7880cac 100644
--- a/bonus-modules/bonus-material/src/main/java/com/bonus/material/materialStation/service/impl/ProAuthorizeServiceImpl.java
+++ b/bonus-modules/bonus-material/src/main/java/com/bonus/material/materialStation/service/impl/ProAuthorizeServiceImpl.java
@@ -231,7 +231,11 @@ public class ProAuthorizeServiceImpl implements ProAuthorizeService {
                     // 电子签名进行base64拼接
                     if(!detailsList.isEmpty()){
                         detailsList.forEach(details -> {
-                            details.setSignName("data:image/png;base64," + details.getSignName());
+                            if (StringUtils.isNotBlank(details.getSignName())) {
+                                if (!details.getSignName().startsWith("http")) {
+                                    details.setSignName("data:image/png;base64," + details.getSignName());
+                                }
+                            }
                         });
                     }
                     info.setDetailsList(detailsList);
diff --git a/bonus-modules/bonus-material/src/main/java/com/bonus/material/purchase/service/impl/PurchaseCheckInfoServiceImpl.java b/bonus-modules/bonus-material/src/main/java/com/bonus/material/purchase/service/impl/PurchaseCheckInfoServiceImpl.java
index f121fd92..dc87c11e 100644
--- a/bonus-modules/bonus-material/src/main/java/com/bonus/material/purchase/service/impl/PurchaseCheckInfoServiceImpl.java
+++ b/bonus-modules/bonus-material/src/main/java/com/bonus/material/purchase/service/impl/PurchaseCheckInfoServiceImpl.java
@@ -914,7 +914,9 @@ public class PurchaseCheckInfoServiceImpl implements IPurchaseCheckInfoService {
                         purchaseSignRecordUserSignList  = signProcessMapper.getPurchaseSignUrlListByTaskId(purchaseCheckDetails.getTaskId());
                         for (PurchaseSignRecord purchaseSignRecord : purchaseSignRecordUserSignList) {
                             if (StringUtils.isNotBlank(purchaseSignRecord.getSignUrl())) {
-                                purchaseSignRecord.setSignUrl("data:image/png;base64," + purchaseSignRecord.getSignUrl());
+                                if (!purchaseSignRecord.getSignUrl().startsWith("http")) {
+                                    purchaseSignRecord.setSignUrl("data:image/png;base64," + purchaseSignRecord.getSignUrl());
+                                }
                             }
                             purchaseSignRecordMap.put(purchaseSignRecord.getSignUrl(), purchaseSignRecord);
                         }