Double-module crawler-type amphibious fire fighting truck

The invention provides a double-module crawler-type amphibious fire fighting truck, which is characterized in that an existing carriage is divided into two shorter carriages, namely a first carriage module and a second carriage module, and the first carriage module and the second carriage module are respectively provided with a first crawler system and a second crawler system; the second carriage module can flexibly walk and steer along with the first carriage module through transmission of the flexible connecting structure so as to shorten the steering torque, and the fire fighting truck further pushes the carriage module to rotate leftwards or rightwards through the hydraulic steering system installed on the flexible connecting structure. The steering torque of the first crawler system and the second crawler system is greatly shortened, so that the steering is more flexible and efficient, and the fire fighting truck can freely walk and steer in the environments of narrow old city streets and narrow alleys;