An electrical stapler wherein when papers to be stapled are inserted into a stapling groove, a fine switch is touched to activate a motor for driving a gear set, the gear set being provided with two biasing rods which can bias a Y-shaped linkage of a stapling mechanism, a fixing rod being pivotably connected with front end of the Y-shaped linkage, two ends of the fixing rod being respectively connected to two springs, a pressing plate being disposed on the fixing rod whereby when operated, the pressing plate is bounded by the springs to strike out a staple from a staple magazine, a controlling circuit being used to control the stapling operation for saving labor and enhancing working efficiency.