A multiple service mix concourse method based on universal frame forming regulations includes: executing alignment, in-frame and decoding operations to the SONET/SDH service or data service code stream, extracting the service data and caching; circularly enquiring each service duct in sequence, executing velocity regulation to the data required to transmit, and extracting the duct identification information; executing GFP encapsulating operation to the service data stream after packaging, and using the CID in the GFP spreading frame head to differentiate the duct identifications; putting the service data stream after packaging in the net load OPUk of the OPUk, and executing the stuffing of the OTN spending to form the OTN signals; executing frame decoding to the OTN signals for decoding the OPUk net load; de-packaging the GFP to obtain the duct identification and data; outputting the data in the corresponding GFP net load to the service transmission buffer; regenerating the SONET/SDH transmission clock, and transmitting the SONET/SDH service or data services. The invention can realize direct conveying of low speed SONET/SDH service signals in the OTN signals, and fully utilizes the band-width resources.