The embodiment of the invention provides an accessing apparatus, method and platform. The accessing apparatus method includes the steps of calling a meta-data description document corresponding to external equipment in response to the external equipment connecting with the accessing platform, sending the meta-data description document to the external equipment, receiving the interaction data fed back by the external equipment according to the meta-data description document, and parsing the feedback interaction data. According to the accessing device, the method and the platform provided by the embodiment of the present invention, connection ports/unique universal identification codes and the like can be personalized, and customized manufacturing of external equipment by a hardware manufacturer is not need to realize the connection and data interaction between the external equipment and the accessing platform. Production cost can be saved, the limitations of external equipment selection are reduced.