The transportation status of the existing high adhesion bulk goods were introduced,the necessity of studying the protective coating on the inner surface of the carriage of the transport vehicle were analyzed.Several common anti-adhesion,wear-resistant coatings and the nickel ore unloading test of the open top container sprayed with different coatings on the actual application line were studied.It was concluded that the protective coating was suitable for the inner surface of the carriage of high adhesion bulk cargo transport vehicle.