The invention discloses a data message process method and a data message process device, wherein the data message process method includes: detecting the transmission frequency of the data message; comparing the transmission frequency whether is smaller than the given one; when the transmission frequency of the data message is smaller than the given one, the ration of transmission frequency of thedata message and the given one is computed, further obtaining the current unit interrupt message value according to the ratio; the data message is processed with interrupt handling according to the given current unit interrupt message value or the current unit interrupt message value. The invention can effectively increase the transmitting and processing effect of the data message and ensure the delay and the CPU processing efficiency.