The invention discloses a media stream data processing method for reducing processing load of CPU. According to a merging package format, the logic of equipment combines a plurality of media surface single packages into one merging package, then the merging package data is sent to a CPU protocol stack to process, the CPU protocol stack divides received merging package data into single packages and provides to a lower device to process; according to the merging package format, the CPU of the device combines a plurality of media surface single packages into one merging package, then the mergingpackage data message is provided to the logic to process, the logic divides received merging package data into single packages and does corresponding treatment, then transmits to an upper device to proccess. The method of the invention only does certain alteration to the format of received/transmitted packages, increases processing flow of the format message through the CPU protocol stack and thelogic, reduces the number of interruption, gets effect of reducing processing load of CPU and reduces equipment cost and energy consumption.