The invention discloses an electric control packer for use on an oil field. The electric control packer consists of an upper joint, a baffle ring, a sealing ring, a gear ring, a gasket, a star wheel, a motor, a limit ring, a small baffle ring, a nut sleeve, an upper center tube, a lower center tube, an upper push ring, a short rubber barrel, a long rubber barrel, a liner tube, a spacer ring, a lower push ring, a connecting sleeve, a setting prevention shear pin, a lock ring, a lock ring seat, an upper cone, a piston, a slip sleeve, a slip, a slip arch spring, a track screw and a lower joint. Setting and unpacking of the packer are realized with the power of the motor in an electric control way, operation is easy, and the situations of error operation and inaccuracy in setting and unpacking are avoided.