Message processing method and device based on front-end system, equipment and medium

The embodiment of the invention provides a message processing method and device based on a front-end system, equipment and a medium. The method comprises the following steps: acquiring a first message input by a service calling party through an access channel; processing the first message based on a target channel adaptation process to determine an internal transaction code corresponding to the first message, and extracting target service metadata from the first message by adopting a metadata extraction rule of a corresponding service; forwarding the target service metadata and the internal transaction code to a lead-out container; processing the target service metadata based on a service adaptation process so as to determine a corresponding target service and a target service system according to the internal transaction code, and packaging the target service metadata into a second message based on a message format of the target service; and sending the second message to the target service provider through an