The invention provides an equipment state sensing voice broadcaster, and belongs to the field of power transformation equipment. A controller is connected with a proximity detection module, a switch sensing module and an audio coding and decoding module to process and store signals of each module; the switch sensing module is connected to knife switches of equipment, state changes of the knife switches of each component are detected to accurately control the working state of each component of the equipment, and cold and hot standby states are effectively identified; after the controller receives that the proximity detection module detects that a human body approaches, the working state in a memory is called to perform coding and decoding and output to the audio coding and decoding module,the working state is converted into an audio signal to be output to a sound box, and an effective warning effect is achieved; and interconnection between substation equipment and a cloud platform is realized by erecting an NBIOT communication module, so that a worker can access the cloud platform through mobile communication equipment to obtain the current working state of a substation.