High precision star sensors often need small field of view (FOV) and large array to ensure high angular resolution.However,small field of view tends to reduce the reliability of star recognition.A multi-FOV star recognition method based on multi-master star is proposed for multi-FOV high precision star sensors.This method first uses a FOV star sensor as a reference,and uses the relative installation relationship between the star sensors to convert the star points detected by other FOV star sensors into a vector in the reference coordinate system,and then determine a master star in the FOV,use the master star as the reference,use the angular distance information and the magnitude information as the recognition marks,construct multiple reference triangles.The search method of piecewise fitting is used to realize the star recognition of multi-FOV.Taking the Gaofen-7 satellite′s domestic dual-FOV star sensors as the object,the original star image downloaded was used for the experiment.The results show that,compared with the traditional multi-FOV star recognition algorithm,the recognition rate of the star recognition method proposed in this paper reaches 99.6%,and the reliability is better.