diff --git a/log/caller_filter_test.go b/log/caller_filter_test.go
new file mode 100644
index 0000000..c946f30
--- /dev/null
+++ b/log/caller_filter_test.go
@@ -0,0 +1,31 @@
+package log
+
+import "testing"
+
+// isInfrastructureFile 的入参是 shortenPath 后的短路径（最后两段）
+func TestIsInfrastructureFile(t *testing.T) {
+	cases := []struct {
+		file string
+		want bool
+	}{
+		// hotime 框架的 session/context 属中间层，应跳过
+		{"hotime@v1.7.302/session.go", true},
+		{"hotimev1.5/session.go", true},
+		{"hotime@v1.7.302/context.go", true},
+		// 框架基础设施目录
+		{"db/db.go", true},
+		{"cache/cache_db.go", true},
+		{"zerolog/log.go", true},
+		// hotime 根包其余文件不跳过（application.go、code.go 的日志是框架自身行为）
+		{"hotime@v1.7.302/application.go", false},
+		{"hotime@v1.7.302/code.go", false},
+		// 业务侧同名文件不受影响（路径不含 hotime）
+		{"wx/session.go", false},
+		{"app/user.go", false},
+	}
+	for _, c := range cases {
+		if got := isInfrastructureFile(c.file); got != c.want {
+			t.Errorf("isInfrastructureFile(%q) = %v, want %v", c.file, got, c.want)
+		}
+	}
+}
diff --git a/log/logger.go b/log/logger.go
index 22bbf76..6b23dcc 100644
--- a/log/logger.go
+++ b/log/logger.go
@@ -890,6 +890,11 @@ func isInfrastructureFile(file string) bool {
 		if strings.HasSuffix(file, "/context.go") || strings.HasSuffix(file, "\\context.go") {
 			return true
 		}
+		// session.go 是 session 存取中间层，永远不是业务发起点；
+		// 跳过后 session 读写触发的 SQL 日志 caller 直接落业务帧（而非 session.go:29 <- 业务帧）
+		if strings.HasSuffix(file, "/session.go") || strings.HasSuffix(file, "\\session.go") {
+			return true
+		}
 	}
 
 	return false