Message forwarding processing and sending method and device of network slice, equipment and medium

The invention relates to a message forwarding processing and sending method and device of a network slice, equipment, a medium and a program product, and relates to the field of network technology and security technology. According to the invention, security isolation with better and more flexible granularity can be provided for services, the utilization rate of network physical resources is improved, and more efficient channel control is realized. The method comprises the steps of receiving a message, if a source address in a message header of the message comprises a preset slice prefix, obtaining a slice identifier included in the source address, if a slice channel corresponding to the slice identifier does not exist, processing the message according to a strict mode mark included in the slice identifier, and if the slice channel corresponding to the slice identifier exists, processing the message according to the strict mode mark included in the slice identifier. And if not, forwarding the message through