Fire-fighting robot car supporting plate

The utility model provides a vehicle supporting plate of a fire-fighting robot. The vehicle supporting plate comprises a support, a containing plate, a lifting plate, a second transmission assembly and a connecting assembly. The support comprises a top plate and a bottom plate which are arranged up and down, a first lifting groove penetrates through the bottom plate, and a second lifting groove penetrates through the top plate; the placing plate is mounted at the top of the top plate; the lifting plate is connected into the support in a lifting mode and comprises fixing plates on the two sides of the top end of the lifting plate and blocking rods inwards arranged on the fixing plates on the two sides respectively. The second transmission assembly is installed on the support and drives the lifting plate to movably ascend and descend in the first lifting groove and the second lifting groove. The stop levers of the lifting plate are driven by the second transmission assembly to rise, crawler wheels on the two si