The invention belongs to the field of high-speed network message flow information management and relates to an integrated message flow searching and updating method. The method comprises the steps of (1) carrying out FPGA (field programmable gate array) analysis and extracting quintuple information and payload data of a message; (2) according to the quintuple information, calculating DDR (double data rate) address and reading message flow node information stored in the address; (3) comparing the message flow node information with the quintuple information, if being consistent, generating the hit message flow node information, or else, further carrying out deep message detection matching on the payload data, and if matching, generating newly established message flow node information; (4) by FPGA, updating data to CPU (central processing unit) through PCI-E; (5) analyzing the received data by CPU to obtain the message flow node information, and generating updated message flow node information after CPU finishes message flow node information management stored in memory, and packaging the updated message flow node information into TLP (thread-level parallelism) data format to be issued to FPGA; and (6) analyzing the received updated message flow information by FPGA and writing the updated message flow information into DDR. According to the invention, the integrated message flow searching and updating method adopts an integrated implementation manner, is simple in process is simple and is high in access speed.