The present application relates to a bus communication signal conversion method and device, a medium, and a numerical control machine tool control equipment. The bus communication signal conversion method comprises: acquiring an interface type of a bus interface of a first equipment end; receiving an output signal sent by a communication interface of a second equipment end; extracting a working parameter value of the second equipment end from the output signal; and sending the working parameter value of the second equipment end to the bus interface of the first equipment end according to a communication protocol corresponding to the interface type. The use of the present method can achieve signal conversion between different types of interfaces, thereby ensuring effectiveness of communication.