A vehicle crossing structure relates to auxiliary device of power construction, especially to vehicle crossing structure. A vehicle crossing structure is of simple structure, convenient for installation connection and improving effectiveness and safety is provided. The upper table and lower table are respectively installed at the upper end and lower end of the two sides of the compartment, location hole one is respectively installed at both ends of the upper table, while the location hole two is respectively installed at both ends of the lower table, there is a one-to-one correspondence between the location hole one and location hole two, supports are respectively installed in the location hole one and location hole two, enables the supports location in the four corners, and forms a pair of parallel overline side and a pair of parallel support side; the expansion link is installed in a pair of roller, and the U-shaped frame is installed on the expansion link. Both ends bottom of the sliding plate are respectively arranged with pulley. And the linear driving device is linear actuator, hydraulic cylinder or air cylinder. The vehicle crossing structure is convenient for processing, reliable in operation.