Non-contact proximity switch and valve position indicating system

The invention provides a non-contact proximity switch and a valve position indicating system, and relates to the technical field of switch control. The proximity switch is used for solving the problems that when vibration exists in the working environment of an existing proximity switch, vibration of a magnetic piece can cause misoperation of the proximity switch, and false signals are generated. The non-contact proximity switch comprises a first static contact and a second static contact which are oppositely arranged at an interval, and a first movable contact and a second movable contact are arranged on the first side of the rotating part at an interval; and a limiting block is arranged between the first static contact and the second static contact in the opposite direction of the first static contact and the second static contact, and the driving device drives the elastic assembly to rotate so as to drive the rotating piece to rotate around the limiting block, so that the first movable contact is in contac