The utility model relates to the technical field of electroencephalogram sensors, in particular to an electroencephalogram sensor convenient to wear, which comprises a
detector body, a connecting shaft, a sliding block, a connecting plate, guide rails, a connecting seat and a limiting belt, the connecting plate is fixedly connected between the two guide rails, the sliding block is slidably arranged in the guide rails, the connecting shaft is rotatably arranged on the sliding block, and the connecting seat is fixedly connected with the connecting shaft. A
detector body is fixedly connected between the two connecting shafts, a connecting base is fixedly connected to the guide rail, and a limiting belt is rotationally arranged on the connecting base. The two limiting belts are adjusted to the
proper length by pulling the right limiting belt, then the pull rod is loosened, the return spring rebounds to drive the clamping plate and the pull rod to move to make contact with the clamping block, the
detector body is fixed to the head through the two limiting belts, and therefore the situation that equipment is thrown off due to movement of the body or the head can be prevented.