diff --git a/crates/oxc_semantic/src/jsdoc/parser/jsdoc_parts.rs b/crates/oxc_semantic/src/jsdoc/parser/jsdoc_parts.rs
index e69f273bd70c8..0a89bd7c80987 100644
--- a/crates/oxc_semantic/src/jsdoc/parser/jsdoc_parts.rs
+++ b/crates/oxc_semantic/src/jsdoc/parser/jsdoc_parts.rs
@@ -124,7 +124,7 @@ impl<'a> JSDocTagTypePart<'a> {
     /// Returns the type content without `{` and `}`.
     pub fn parsed(&self) -> &'a str {
         // +1 for `{`, -1 for `}`
-        &self.raw[1..self.raw.len() - 1]
+        self.raw[1..self.raw.len() - 1].trim()
     }
 }
 
@@ -141,7 +141,13 @@ impl<'a> JSDocTagTypeNamePart<'a> {
     }
 
     /// Returns the type name itself.
+    /// `.raw` may be like `[foo = var]`, so extract the name
     pub fn parsed(&self) -> &'a str {
+        if self.raw.starts_with('[') {
+            let inner = self.raw.trim_start_matches('[').trim_end_matches(']').trim();
+            return inner.split_once('=').map_or(inner, |(v, _)| v.trim());
+        }
+
         self.raw
     }
 }
@@ -269,8 +275,8 @@ mod test {
             ("{}", ""),
             ("{-}", "-"),
             ("{string}", "string"),
-            ("{ string}", " string"),
-            ("{ bool  }", " bool  "),
+            ("{ string}", "string"),
+            ("{ bool  }", "bool"),
             ("{{x:1}}", "{x:1}"),
             ("{[1,2,3]}", "[1,2,3]"),
         ] {
@@ -282,7 +288,15 @@ mod test {
 
     #[test]
     fn type_name_part_parsed() {
-        for (actual, expect) in [("foo", "foo"), ("Bar", "Bar"), ("変数", "変数")] {
+        for (actual, expect) in [
+            ("foo", "foo"),
+            ("Bar", "Bar"),
+            ("変数", "変数"),
+            ("[opt]", "opt"),
+            ("[ opt2 ]", "opt2"),
+            ("[def1 = [ 1 ]]", "def1"),
+            (r#"[def2 = "foo bar"]"#, "def2"),
+        ] {
             // `Span` is not used in this test
             let type_name_part = JSDocTagTypeNamePart::new(actual, SPAN);
             assert_eq!(type_name_part.parsed(), expect);
diff --git a/crates/oxc_semantic/src/jsdoc/parser/jsdoc_tag.rs b/crates/oxc_semantic/src/jsdoc/parser/jsdoc_tag.rs
index 62cbdbfb07d2d..84c5d1c42b735 100644
--- a/crates/oxc_semantic/src/jsdoc/parser/jsdoc_tag.rs
+++ b/crates/oxc_semantic/src/jsdoc/parser/jsdoc_tag.rs
@@ -327,7 +327,7 @@ mod test {
             {t2} */",
                 Some(("t2", "{t2}")),
             ),
-            ("/** @k3 { t3  } */", Some((" t3  ", "{ t3  }"))),
+            ("/** @k3 { t3  } */", Some(("t3", "{ t3  }"))),
             ("/** @k4 x{t4}y */", Some(("t4", "{t4}"))),
             ("/** @k5 {t5}} */", Some(("t5", "{t5}"))),
             ("/** @k6  */", None),
@@ -436,19 +436,19 @@ c7 */",
             (
                 r#"/** @property [cfg.n12="default value"] */"#,
                 None,
-                Some((r#"[cfg.n12="default value"]"#, r#"[cfg.n12="default value"]"#)),
+                Some(("cfg.n12", r#"[cfg.n12="default value"]"#)),
                 ("", " "),
             ),
             (
                 "/** @property {t13} [n = 13] c13 */",
                 Some(("t13", "{t13}")),
-                Some(("[n = 13]", "[n = 13]")),
+                Some(("n", "[n = 13]")),
                 ("c13", " c13 "),
             ),
             (
                 "/** @param {t14} [n14] - opt */",
                 Some(("t14", "{t14}")),
-                Some(("[n14]", "[n14]")),
+                Some(("n14", "[n14]")),
                 ("- opt", " - opt "),
             ),
         ] {