The invention discloses a cooperation processing method for messages in a local area network, and a device. The method comprises steps that for a first terminal, an equipment state message broadcasted by a second terminal is received, and the equipment state message is used for identifying change of a work state of the second terminal; whether self equipment capability of the first terminal can realize processing on the equipment state message is determined, if yes, the equipment state message is notified according to self equipment capability of the first terminal; after a processing instruction for the equipment state message is received, an information response message is fed back to the second terminal, so the self second terminal and the equipment state message broadcasted to other terminals except the first terminal are indicated to remove. According to the method, a problem of influence on user experience generated as each equipment in the local area network in the prior art is in an isolate state and can not realize combination of respective processing capability of each equipment to accomplish inter-equipment-message cooperation processing work is solved.