To make a striking bit hard to shift in position from a target working position of an object to be struck when starting to strike.

An electric striking tool applies striking force caused by a pneumatic pressure to the striking bit by allowing a piston working with torque of a motor to compress the air in a cylinder when the bit axially displaces by reaction force that the tip of the bit is pressed against the object to be struck. It includes a strike start sensing means for detecting the start of the striking and a motor rotation speed control means capable of controlling the motor rotation speed from low-speed rotation NL to high-speed rotation NH. The motor rotation speed control means sets rotation speed of the motor to low-speed rotation NL when the strike start is detected, and sets the rotation speed of the motor to high-speed rotation NH after set time (t1+t2) has elapsed since the strike start.