A lateral tilting preventive tipping gear comprises a supporting mechanism, a bearing mechanism, an inclination angle adjusting mechanism, a positioning mechanism, a feeding mechanism and a hub holding mechanism. According to the scheme, the lateral tilting preventive tipping gear is characterized in that the hub holding mechanism is arranged; a second oil cylinder works, and the output end of thesecond oil cylinder is capable of promoting a U-shaped fixing part to move toward front wheels of a cargo carrying vehicle until the U type fixing part is in close contact with and tightly holds theside surfaces of front wheel tires of the cargo carrying vehicle, and thus continuous and stable thrust is supplied to the front wheel tires; the skew degree of vehicle focus to a feed bin is reduced;the tires at one side of the vehicle is prevented from breaking away from the ground; the vehicle is prevented from lateral tilting; after unloading of the cargo carrying vehicle, the output end of the second oil cylinder is returned to an original position and does not tightly hold the front wheels or rear wheels of the cargo carrying vehicle.