Inertial/satellite integrated navigation is an important means for shipborne inertial navigation to achieve longterm high-precision navigation. It can achieve real-time estimation and closed-loop of inertial navigation errors，ensuring high-precision navigation information output by inertial navigation. However，satellite navigation is susceptible to deception and interference，resulting in inaccurate navigation errors estimated by inertial navigation. When inertial navigation switches from integrated navigation state to autonomous navigation state，the navigation accuracy performance drops sharply. This article designs a method for preventing deception and interference in satellite navigation on the device side，using inertial/satellite integrated navigation filtering innovation to construct Chi-square statistics to detect the effectiveness of satellite navigation. Based on the detection results，the reference position information provided by satellite navigation is selectively used，so that the navigation error estimated by inertial navigation is not affected by the quality of satellite information. And the dynamic sports car test is used to verify the designed satellite navigation anti deception interference algorithm. The verification results show that when the satellite navigation is subjected to deception interference，the inertial/satellite integrated navigation switches to autonomous navigation，and the inertial navigation can continue to work with high accuracy. Compared with the traditional integrated navigation algorithms，the position accuracy is at least 6 times higher.This study can provide reference for the engineering implementation of satellite navigation anti deception interference in the design of inertial/satellite integrated navigation algorithms in the field of inertial navigation.