The invention provides a technical scheme of a fire-fighting robot. According to the technical scheme, the fire-fighting robot comprises a box body, a console and a control handle, and also comprises a camera, a water pump, a water tank, a shower nozzle, a travelling driver and a lifting driver, wherein the travelling driver and the lifting driver are controlled by a programmable controller; a guide rod is fixed at the bottom inside the box body; a lifting plate is arranged on the guide rod; a lifting cylinder is fixed above the lifting plate; a lifting driver is arranged below the lifting plate; the lifting cylinder can extend out from the top of the box body; a support tube is fixed at the top of the lifting cylinder; the shower nozzle and the camera are arranged on the support tube; a water tank is arranged at one side inside the tank body; the water pump is arranged below the water tank; the water pump is connected with the shower nozzle through a hose; the travelling controller is arranged at the bottom of the box body. By adopting the scheme, the problem in emergency treatment of dinitrodiazophenol (DDNP) primary explosive under emergency circumstances in production of the DDNP primary explosive can be solved, man-medicine separation is achieved, and the safety in the production process is improved.