Multifunctional electric screwdriver

The utility model relates to a multifunctional electric screwdriver which comprises an outer shell and an inner supporting frame, a plurality of vertical clamping plates are arranged on the inner wall of the outer shell, and a plurality of first clamping grooves are formed in the inner supporting frame. A battery groove and a motor mounting groove are formed in the inner supporting frame, a plurality of horizontal limiting plates are further arranged on the back of the battery groove, a plurality of second clamping grooves are formed in the horizontal limiting plates, a circuit board mounting groove is further formed in the side, away from the battery groove, of the inner supporting frame, a plurality of mounting columns are arranged in the circuit board mounting groove, and threaded holes are formed in the mounting columns. A circuit board electrically connected with the battery and the motor is provided with connecting holes corresponding to the mounting columns; according to the multifunctional electric sc