The invention discloses a data packet serial receiving method, and consists of a receiving data packet serial which allocates virtual sequence number for the received data packet; when the received current data packet is a data packet after the data packet of the first allocated virtual sequence number, the virtual sequence number of the current data packet is obtained according to virtual serialin-time cut information of the previous data packet, the time cut information of the current data packet, and the interval of minimum data packets; the sequence of the received data packets is rearranged according to the virtual sequence number. The invention simultaneously discloses a data packet serial receiving device. The application of the invention can reduce the overflow frequency of the virtual sequence number, adapt to the time interval of different data packets, and improve the utilization ratio of the resources.