The utility model discloses a stair flight blasting and pre-splitting smooth surface anti-disturbance blasting structure under a complex rock stratum. The device comprises a frame, an explosive placing buckle frame and a bottom plate, the bottom plate is assembled on the frame; the explosive placing buckle frame is arranged on the frame; fixing is carried out through mutual calipers between the frame bodies; a control type ignition structure is arranged on the bottom plate; the device consists of an electric arc igniter, a processor, a signal receiver and a signal emitter, wherein the processor and the signal receiver are integrated on the same PCB, a control circuit of the electric arc igniter is electrically connected with the processor, the signal receiver can receive signals sent by the signal transmitter, the bottom plate is provided with a tensioning structure, a cavity is formed in the bottom plate, and a power supply structure is arranged in the cavity. The scheme is characterized in that the blasting structure which has a tensioning function and can be remotely controlled is provided, blasting is achieved through transmission determination between signals, and the beneficial effect of better fixing is achieved through the tensioning structure.