A fishing reel having a drag assembly. The drag assembly brakes the unwinding rotation of a spool to prevent a fishing line from being excessively rapidly unwound from the spool and thus from being snapped when the fishing line is drawn out by a hooked fish. The drag assembly includes a washer retainer coupled to a drive gear, and a washer group having a brake washer. Therefore, there is no need for the drive gear to have a shape corresponding to the washer group, whereby the manufacturing process can be facilitated, the time it takes to manufacture the fishing reel can be reduced, and the production cost can also be reduced.