With the electromagnetic environment getting more complicate，the anti-jamming performance of satellite navigation system is becoming more and more strictly. In those small Satellite Navigation products, power and size are the two most important limiting factors. An anti-jamming performance of satellite navigation system ASIC chip could solve this problem effectively. The bank-end layout design about this anti-jamming satellite navigation ASIC chip is proposed in this paper. In the design process, floorplan, place, route, stationary timing analysis and optimizing are introduced based on SOC Encounter bank-end layout design tool.