A magazine catch is adapted to be mounted in a gun body and to be pressed for releasing a detachable magazine. The magazine catch includes a press member and a catch member. The press member has a first main body, and a press portion and a first engaging portion that are connected to opposite ends of the first main body. The catch member has a second main body, and a catch portion and a second engaging portion that are respectively connected to two opposite ends of the second main body. The catch portion is disposed for engaging with the detachable magazine. The second engaging portion and the first engaging portion are separably engaged with each other such that the catch member and the press member are co-movable.