The invention relates to a fire-fighting robot, and belongs to the technical field of land fire-fighting vehicles. The fire-fighting robot comprises a moving chassis and a water tank mounted on the moving chassis and further comprises a fire-fighting nozzle, a protecting nozzle and a high-pressure water pump; the fire-fighting nozzle communicates with the water tank, so that water is supplied to the fire-fighting nozzle by the water tank; the protecting nozzle also communicates with the water tank, so that water is supplied to the protecting nozzle by the water tank; and the protecting nozzleis used for spraying the water to the fire-fighting robot to protect the fire-fighting robot. After the fire-fighting robot enters the fire scene, the water is supplied to the fire-fighting nozzle bythe water tank, so that the fire-fighting nozzle can spray water for fire-fighting; the protecting nozzle is also connected with the water tank, so that the water can be sprayed to the fire-fighting robot by the protecting nozzle; under protection of the water, the robot is not prone to breaking down due to the high temperature and flames at the fire scene, so that the robot can stay at the fire scene safely, water sprayed by the fire-fighting nozzle is used for fire-fighting, and the fire is controlled better.