The invention discloses a caterpillar track type multifunctional emergency service vehicle and belongs to the field of emergency rescue and disaster relief equipment. The caterpillar track type multifunctional emergency service vehicle comprises a chassis. A traveling device is installed under the chassis. The traveling device comprises six pairs of load-bearing wheels installed under the chassis, two pairs of driving wheels, caterpillar tracks and track supporting wheels used for supporting the caterpillar tracks. A suspension device is installed between each pair of load-bearing wheels and the chassis. A winch is fixed to the front end of the chassis, and a cab and a rotary table are fixed to the chassis. A multifunctional arm and an operation room for controlling the multifunctional arm are installed on the rotary table. A quick-change connector is installed at the end of the multifunctional arm. The caterpillar track type multifunctional emergency service vehicle has the advantages that the multifunctional arm can be selectively connected with an excavation bucket, a water suction pump, an extension jib, a rapid sealing clamp and the like rapidly, so that the vehicle is multifunctional; the vehicle is high in adaptability to various terrains, suspension locking and leveling of the vehicle body are achieved, and the vehicle is good in running stability and comfort level; and when the vehicle is stuck in a bog and sludge and cannot go forward, the winch is used for self-rescue.