The utility model relates to a jacking equipment with prevent weighing down function, including mounting bracket, carrier, power component, lifting unit and electric control assembly, power component and lifting unit and the linkage of carrier realization syntropy, electric control assembly is connected with the power component electricity, power component drives lifting unit and does the up -and -down motion, lifting unit including connecting driving part as an organic whole, go up driven climbing and driven climbing down, the driving part, go up driven climbing and down the back of driven climbing piece all hinge and have spacing rolling member, upward all be equipped with the climbing sprocket on driven climbing piece and the lower driven climbing piece, the driving part be located between driven climbing and the driven climbing down and drive the climbing sprocket?turns who goes up on driven climbing and the driven climbing piece down, electric control assembly includes programmed card and switch handle, switch handle control power component's operational?safety high, the range of application is wide, possess the crisis advantage such as function of relieving and flee. Belong to jacking equipment technical field.