Method for converting message between different types of network

PURPOSE: A mutual message conversion method of a heterogeneous network is provided to automatically convert a mutually transmitted and received through different kind of communication methods to enable a heterogeneous network. CONSTITUTION: The start and termination position of each file of a payload corresponding to an analyzed non-IP message type is analyzed(S711), and a payload filed value of a corresponding position is extracted(S713). The extracted payload filed values are converted into an UPnP(Universal Plug and Play) message format corresponding to a non-IP message type value(S715). The payload field value is converted into the UPnP message value corresponding to the payload field value(S719), and a message of the UPnP device is created(S721).