An electric wheelchair that enables users suffering from impairment of the lower extremities due to paralysis or weakness caused by aging to manage their daily lives independently for social rehabilitation by allowing them to raise and lower the seat of the wheelchair between squatting and standing positions, to support their body weight at any position by stopping the chair, and to operate the movement of the wheel chair by using their arms or elbows pressed on either the inner or outer surfaces of the armrests even if both hands are occupied or impaired.