A hand brake (3) for a motorcycle which at least includes a fixed seat (31), a first actuating member (32), a second actuating member (33), a ratchet (34) and a handle (35), wherein the fixed seat has a plurality of teeth (311), the ratchet (34) is mounted between the first actuating member (32) and the second actuating member (33), the first actuating member (32) is connected at one end with an axle (323) which has external splines (3231) adapted to engage with internal splines (352) of the handle (35), whereby when the handle (35) is pulled, the first (32) and the second (33) actuating members will be driven to rotate the ratchet (34). By means of arranging the handle at one side of the first actuating member and mounting the handle and the first actuating member on the same axle, the space for the operation of the handle in the frame cover of the motorcycle can be reduced and the hand brake can be easily installed and can be designed in outlook as desired.