The invention relates to a relay protection work car. The work car comprises a car body, universal wheels and a push handle support, the car body is of a cuboid frame structure, and the side face and the top face of the frame structure are both of an opening structure. A plurality of horizontally distributed storage plates are arranged in the frame structure of the car body, each storage plate is composed of a flat plate and a sloping plate, and the sloping plates are arranged around the edges of the flat plates in an upward sloping mode; a plurality of vertical telescopic insertion connectors are uniformly arranged on the top of the frame structure of the car body, one supporting rod is inserted into each telescopic insertion connector, the upper ends of all the supporting rods are connected to a rainshed together, and the rainshed is located above the car body. The relay protection work car is reasonable in design, convenient to use, low in manufacturing cost and high in practicability. By means of the work car, small articles are convenient to store and find, and a large device can be placed in the car. Moreover, when the work car is used, time and labor are saved, the work car can keep out wind and rain, and great convenience can be brought to workers.