The utility model relates to a quick detaching and changing pin, which comprises at least one rotating ring. The upper end and the lower end of the rotating ring are respectively provided with an upper rotating O-ring and a lower rotating O-ring, which is characterized in that the lower rotating O-ring of the rotating ring is provided with at least one pin, the upper end of the pin is provided with an upper O-ring connected with the lower rotating O-ring of the rotating ring, and the lower end is provided with a hook.With this structure, the O-ring at the bottom of the rotating ring and the O-ring at the top of the pin can rotate 360 degrees in three-dimensional space, so that the hook has the child line of the fish hook and its pin. When the fish and shrimp bite the bait, they have no gravity sense, and the flat shape of the pin makes it easy to grasp and assemble.一種快速拆換別針，係包括至少一轉環，該轉環於其上端及下端分別設有一上旋轉O型環及一下旋轉O型環，其特徵在於︰轉環其下旋轉O型環設有至少一別針，該別針上端設有與轉環其下旋轉O型環連接之一上O型環，其下端設有一下鉤。藉此結構，能利用轉環其下旋轉O型環與別針其上O型環相互作360度三度空間旋轉，使鉤合具有魚鉤之子線其別針，於魚、蝦咬餌時無重力感，並利用別針扁平形使其抓握組裝容易。
