diff --git a/kernel/model/ocr.go b/kernel/model/ocr.go
index 96c493c8b..fa971bc93 100644
--- a/kernel/model/ocr.go
+++ b/kernel/model/ocr.go
@@ -57,7 +57,7 @@ func autoOCRAssets() {
 		waitGroup.Add(1)
 		p.Invoke(assetAbsPath)
 
-		if 63 <= i { // 一次最多处理 64 张图片，防止卡顿
+		if 63 <= i { // 一次任务中最多处理 64 张图片，防止卡顿
 			break
 		}
 	}
diff --git a/kernel/model/transaction.go b/kernel/model/transaction.go
index e68675d59..b3c19d9a7 100644
--- a/kernel/model/transaction.go
+++ b/kernel/model/transaction.go
@@ -1225,8 +1225,8 @@ func AutoIndexEmbedBlock() {
 }
 
 func autoIndexEmbedBlock() {
-	embedBlocks := sql.QueryEmbedBlocks()
-	for _, embedBlock := range embedBlocks {
+	embedBlocks := sql.QueryEmptyContentEmbedBlocks()
+	for i, embedBlock := range embedBlocks {
 		stmt := strings.TrimPrefix(embedBlock.Markdown, "{{")
 		stmt = strings.TrimSuffix(stmt, "}}")
 		blocks := sql.SelectBlocksRawStmtNoParse(stmt, 102400)
@@ -1234,6 +1234,10 @@ func autoIndexEmbedBlock() {
 			embedBlock.Content = block.Content
 			sql.UpdateBlockContent(embedBlock)
 		}
+
+		if 63 <= i { // 一次任务中最多处理 64 个嵌入块，防止卡顿
+			break
+		}
 	}
 }
 
diff --git a/kernel/sql/block_query.go b/kernel/sql/block_query.go
index 32e35c108..53892b9d6 100644
--- a/kernel/sql/block_query.go
+++ b/kernel/sql/block_query.go
@@ -31,7 +31,7 @@ import (
 	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
-func QueryEmbedBlocks() (ret []*Block) {
+func QueryEmptyContentEmbedBlocks() (ret []*Block) {
 	stmt := "SELECT * FROM blocks WHERE type = 'query_embed' AND content = ''"
 	rows, err := query(stmt)
 	if nil != err {