The invention relates to a hasp-locked rigid chain push-pull actuating mechanism composed of a rigid chain and a driver. Each chain link of the rigid chain is composed of two half chain links. Each half chain link comprises an outer chain plate, an inner chain plate, and two fixing pins for fixing the two chain plates together from the middle parts; the heads of the two half chain links are interlaced to lap over each other, and are hinged together by one connecting pin at the corners of the heads; a hasp is disposed at the outer side of the outer chain plate, and one end of the hasp is hinged to the end of the fixing pin that extends out of the outer chain plate, and the other end of the same hooks up to the end of the fixing pin that extends out of the inner chain plate in the adjacent half chain link, and a control pin is disposed in the middle; a guide groove is formed in an inner surface of a guide plate in the driver, and a control groove for controlling the control pin for the hasp to rotate around the hinged end of the hasp is formed in the bottom surface of the guide groove and used to control the head of the hasp to hook up to or disengage from the corresponding fixing pin, and finally, switching of rigid and flexible states of the rigid chain is achieved.