A crank handle for a spinning reel includes an axle inserted through a base, an bush mounted on the axle inside the base and having two cut faces, a retaining member, which has an axial hole for receiving the axle and the bush, two notches at one end, and two flat portions for engaging the cut faces of the bush, a spring sleeved onto the bush and stopped between the base and the retaining member, and a handle, which is pivoted to one end of the axle and has two blocks for engaging the notches of the retaining member.