The invention provides a switch cabinet and a multi-triggering interlocking device thereof. The switch cabinet multi-triggering interlocking device comprises a box and a locking block on a cable room door, wherein the locking block is provided with a limiting hole, a rotating piece and an elastic reset piece used for driving the rotating piece to reset are arranged in the box, the rotating piece comprises a locking portion which can be rotationally clamped into the limiting hole of the locking block, a stopping structure used for controlling the rotation of the rotating piece is also arranged in the box, the stopping structure comprises an operating arm connected with a plurality of triggering components, the rotating piece comprises a locking position, and when in the locking position, the locking portion of the rotating piece is clamped into the limiting hole. According to the switch cabinet interlocking device of the invention, the triggering components can control the opening of the cable room door via the multi-triggering interlocking device; the switch cabinet interlocking device adopts the pure mechanical structure, and is simple in structure, relatively low in cost, high in reliability and good in protection performance.