The invention relates to a reset trigger platform of a tower crane mechanism. The reset trigger platform comprises a tower crane main body and content capturing equipment, wherein the tower crane mainbody comprises a balance arm, an erector arm, a lifting vehicle, an tower top and a cab; the balance arm is of a structure formed by installing and welding I-shaped steel and angle steel, wherein thebalance arm is divided into two sections which are connected by an ear plate hinge pin, a handrail and an aisle are arranged on the balance arm, and the tail part is provided with a working platform;the erector arm is a luffing radius-changed erector arm, the lifting vehicle is composed of a vehicle frame structure, a steel wire rope, a pulley, a traveling wheel, a guide wheel, a steel wire ropebearing wheel, a steel wire rope anti-disengaging roller, a vehicle body traction rope tensioner and a rope breaking safety device; and the content capturing equipment is arranged at the bottom end of the cab and is used for capturing image content of a lifting scene of the lifting vehicle so as to obtain and output a corresponding lifting scene image. The reset trigger platform of the tower crane mechanism is stable in operation and effective in control; and due to the fact that countermeasures for equipment reset can be automatically adopted according to an identification result of a fieldtarget, so it is ensured that the safety of field equipment and human bodies are not violated.