An improved automatic soap dispenser structure includes a motor and a gear wheel module installed in a driving device of a soap dispenser to transmit a driving wheel and uses an eccentric wheel disposed on the driving wheel to produce an eccentric effect, characterized in that the eccentric wheel couples a link member, and the link member presses a press plate, such that when the press plate compresses a soap dispensing tube, a back plate of the press plate and a latch surface of a rear panel compress to close the upper section of the soap dispensing tube, and then the design of a protruded curved surface of the press plate and a recessed curved surface of the rear panel compress the soap dispensing tube progressively downward to produce a power-saving and smooth compressing effect.