diff --git a/routers/repo/dataset.go b/routers/repo/dataset.go
index 47a425c84..e8c64ad02 100644
--- a/routers/repo/dataset.go
+++ b/routers/repo/dataset.go
@@ -2,6 +2,7 @@ package repo
 
 import (
 	"code.gitea.io/gitea/modules/storage"
+	"net/url"
 	"sort"
 
 	"code.gitea.io/gitea/models"
@@ -81,12 +82,19 @@ func DatasetIndex(ctx *context.Context) {
 	ctx.Data["Attachments"] = attachments
 	ctx.Data["IsOwner"] = true
 	uuid := gouuid.NewV4().String()
-	url, err := storage.Attachments.PresignedPutURL(models.AttachmentRelativePath(uuid))
+	log.Info(uuid)
+	tmpUrl, err := storage.Attachments.PresignedPutURL(models.AttachmentRelativePath(uuid))
 	if err != nil {
 		ctx.ServerError("PresignedPutURL", err)
 	}
+	log.Info(tmpUrl)
+	preUrl,err := url.QueryUnescape(tmpUrl)
+	if err != nil {
+		ctx.ServerError("QueryUnescape", err)
+	}
+	log.Info(preUrl)
 	ctx.Data["uuid"] = uuid
-	ctx.Data["url"] = url
+	ctx.Data["url"] = preUrl
 	renderAttachmentSettings(ctx)
 
 	ctx.HTML(200, tplIndex)