A combined-type warning board comprises a warning panel, wherein a box body is arranged on the back portion of the warning panel, a control circuit module is arranged inside the box body, the control circuit module is composed of a single chip microcomputer, a charge unit circuit of the single chip microcomputer, a signal receiving unit circuit of the single chip microcomputer, and an indicating lamp circuit of the single chip microcomputer, wherein a sensor interface of the signal receiving unit circuit is formed in the top portion of the box body. On the basis of an existing warning board manufactured in accordance with 'China State Grid Corp Electrical Safe Work Procedures', through additional arrangement of the control circuit module and the like, when the warning panel is in work and in a fixedly-arranged state, the control circuit module is in a sleep state, and when the phenomena that the warning board drops off or loses and the like occur, high and low level fluctuation signals of an externally-arranged infrared radiation tube sensor are sent to the single chip microcomputer through the sensor port, then the single chip microcomputer conducts judgment and outputs corresponding wireless warning signals, and therefore monitoring departments know the dynamic circumstances of the warning board.