Abstract:Advanced communication network and basic communication equipment are the core technologies of implement for intelligent manufacturing. Based on the analysis of problems in typical industrial fieldbus communication system, the requirement of , Flight Management System (FMS) mobile communication network is put forward. Three typical ad-hoc network routing protocols were selected, their performance comparison based on the average packet delivery ratio, routing overhead and end-to-end delay was made with the FMS constraints of business load, node number and node movement speed and under OPNET simulation environment. FMS mobile ad-hoc network based on embedded hardware platform and special routing operation system (OS) was set up, and the practical application effect was verified. Performance evaluation of different model routing protocols is basic works of FMS application and ad-hoc network optimization, and the results are useful for the communication system design of FMS and intelligent manufacturing in general.