A suction cup with a strong absorption force comprises an elastic pressing plate body (1). A framework (2) is disposed in the elastic pressing plate body (1). A connecting rod (3) is disposed on a rear portion of the framework (2). A plurality of raised ribs (4) protruding from and exposed out of an upper surface of the pressing plate body (1) is further disposed on a rear portion of the framework (2). The connecting rod (3) is sheathed with a suction cup cover (5) directly pressed against the raised ribs (4). A push piece (6) pushed against the back of the suction cup cover (5) and connected to the connecting rod (3) is disposed on the back side of the suction cup cover (5).
