Rear floor reinforcing structure of vehicle

The utility model provides a rear floor reinforcing structure of a vehicle, belonging to the technical field of vehicles, and solving the problem that the rear floor in the existing electric motor car is easy to sink. In the rear floor reinforcing structure of the vehicle, steps are arranged at the rear end of a rear floor of the vehicle, a front cross beam is arranged below the steps, a rear seat cushion fixing frame is arranged in the horizontal direction above the step, the front end of the rear floor is connected with a front floor of the vehicle, a seat cross beam reinforcing plate is arranged on the front floor, the rear floor is longitudinally and fixedly connected with a longitudinal reinforcing beam, the front end of the longitudinal reinforcing beam is connected with the seat cross beam reinforcing plate, and the rear end of the longitudinal reinforcing beam extends on the steps and is connected with the front cross beam. The rear floor reinforcing structure of the vehicle has the advantages of wide using range and the like, and can effectively improve the strength of the rear floor.