Application data acquisition method and device

The invention discloses an application data acquisition method and device. The method comprises the steps that a cloud platform acquires a first request sent by a client; the first request comprises a unique identifier of the to-be-accessed equipment; determining an extranet address of the to-be-accessed device in an extranet address record according to the unique identifier of the to-be-accessed device; the extranet address of each equipment end is recorded in the extranet address record; the external network address of each device end is obtained by the cloud platform through analysis based on a login request sent by each device end; taking the external network address as a first response corresponding to the first request, and feeding back the first response to the client; the first response is used for indicating the client to be connected with the to-be-accessed device according to the external network address, and obtaining the application data from the to-be-accessed device. By converting the intranet