diff --git a/internal/collections/infra/mysql_repo.go b/internal/collections/infra/mysql_repo.go
index 5b2f1b89a..51265b07e 100644
--- a/internal/collections/infra/mysql_repo.go
+++ b/internal/collections/infra/mysql_repo.go
@@ -38,6 +38,7 @@ import (
 	"github.com/bangumi/server/internal/collections"
 	"github.com/bangumi/server/internal/collections/domain/collection"
 	"github.com/bangumi/server/internal/model"
+	"github.com/bangumi/server/internal/pkg/dam"
 	"github.com/bangumi/server/internal/pkg/gstr"
 	"github.com/bangumi/server/internal/subject"
 )
@@ -306,6 +307,14 @@ func (r mysqlRepo) reCountSubjectTags(ctx context.Context, tx *query.Query,
 	var count = make(map[string]int)
 
 	for _, tag := range tagList {
+		if len(tag.Tag.Name) == 0 {
+			continue
+		}
+
+		if dam.ZeroWithPattern.MatchString(tag.Tag.Name) {
+			continue
+		}
+
 		count[tag.Tag.Name]++
 	}
 
diff --git a/internal/pkg/dam/dam.go b/internal/pkg/dam/dam.go
index 81eb59dd0..6191fb021 100644
--- a/internal/pkg/dam/dam.go
+++ b/internal/pkg/dam/dam.go
@@ -96,3 +96,5 @@ func AllPrintableChar(text string) bool {
 
 	return true
 }
+
+var ZeroWithPattern = regexp.MustCompile(`\p{Cf}|\p{Cc}|\p{Co}`)
diff --git a/internal/subject/mysq_repository_compat.go b/internal/subject/mysq_repository_compat.go
index 01a700445..4f5c203e8 100644
--- a/internal/subject/mysq_repository_compat.go
+++ b/internal/subject/mysq_repository_compat.go
@@ -23,8 +23,9 @@ import (
 )
 
 type Tag struct {
-	Name  *string `php:"tag_name"`
-	Count int     `php:"result,string"`
+	Name       *string `php:"tag_name"`
+	Count      int     `php:"result,string"`
+	TotalCount int     `php:"tag_results,string"`
 }
 
 func ParseTags(b []byte) ([]model.Tag, error) {
diff --git a/web/req/collection.go b/web/req/collection.go
index 4387fd3d6..8e4193698 100644
--- a/web/req/collection.go
+++ b/web/req/collection.go
@@ -51,6 +51,12 @@ func (v *SubjectEpisodeCollectionPatch) Validate() error {
 		if !lo.EveryBy(v.Tags, dam.AllPrintableChar) {
 			return res.BadRequest("invisible character are included in tags")
 		}
+
+		if lo.ContainsBy(v.Tags, func(item string) bool {
+			return len(item) == 0
+		}) {
+			return res.BadRequest("zero length tags are included in tags")
+		}
 	}
 
 	if v.Comment.Set {