The invention discloses a bidirectional rotary water pumping screw propeller and a dish washing machine, and relates to the technical field of cleaning sanitary appliances. The bidirectional rotary water pumping screw propeller and the dish washing machine are designed to solve problems of a single unidirectional rotary water pumping function, poor dinnerware cleaning effects and the like of an existing screw propeller of an existing dish washing machine. The bidirectional rotary water pumping screw propeller comprises at least two first blade groups and second blade groups. The first blade groups are symmetrical with one another around the center of a rotary shaft, the quantity of the second blade groups is identical to that of the first blade groups, the second blade groups are symmetrical with one another around the center of the rotary shaft, and the screw direction of each first blade group is opposite to that of the corresponding second blade group. The dish washing machine is provided with the screw propeller. The unidirectional rotary water pumping screw propeller and the dish washing machine have the advantages that water can be pumped by one blade group when the screw propeller rotates forwardly, water can be pumped by another blade group when the screw propeller rotates reversely, and a bidirectional rotary water pumping effect can be realized; dinnerware can washed forwardly and reversely by water flow, and accordingly cleaning effects can be realized; the excellent dinnerware cleaning effects can be realized by the bidirectional rotary water pumping screw propeller as compared with a unidirectional rotary screw propeller, the pumped water flow is uniform, the bidirectional rotary water pumping screw propeller has few dead spaces, and the dinnerware cleaning efficiency can be greatly improved.