The invention discloses an electrical control system for a vehicle-mounted pyrolyzing furnace, and the system employs a touch screen as a man-machine interface. The system has a manual operating modeand an automatic operating mode, can achieve the real-time monitoring of the condition of the furnace and the parameter setting and modification, and can achieve the convenient and visual monitoring of the working process of the pyrolyzing furnace. The system is stable and reliable in performance, helps an operator complete the operation efficiently and safely through the automatic monitoring of the internal temperature of the furnace, the feeding speed and the internal pressure of the furnace, enables the pyrolyzing furnace to work in an optimal state, and prolongs the service life of the pyrolyzing furnace.