Trailer Poer station consists of diesel generator units and trailer, of which have fours types as single bearing, double bearing, dual wheel and four wheels according to the power difference. The power station is in complying with vehicle running safety and technical conditions as well as various relative requirements of general technical conditions of altered current industrial frequency power station. It has good sealing characterisic and safety performance. It undertakes rush load in change frequency places and it is a good emergency power.