Selecting method of path in resource supervisor

This invention discloses a route selection method in a resource manager: A determining the inter-domain label exchange path with the next hop carrying net resource manager sequently from the source manager and registering the inter-domain label exchange path, starting a service route connecting resource request to the next hop manager and judging if it's the destination manager, if so, step B is carried out, otherwise, this step is carried on. B Beginning from the destination carrying net resource manager, every hop in-domain label exchange path is determined and the inter-domain paths registered by the manager and the in-domain paths are sent to the last manager by a service route resource determine response till to the source one, C, The source one sets up in-domain paths and sends the total paths from the source to the destination to the end office or junction center by flow image order.