This paper presents a design of microwave photon multi-band and multi-functional wideband reconfigurable artillery position detection and correction radar. The advantages of multi band, multi-function and low phase noise meet the needs of searching and tracking. In addition, the low angle tracking in the battlefield environment also needs the search and tracking and the improvement of the low angle performance to modify the enemy’s position detection and correct the enemy’s projectile position. This design effectively improves the performance of low angle tracking and search tracking, and realizes the integration of search and tracking. It is a new development direction of the gun location detection and calibration radar.