phishing brings great danger to the application of laser communication network. In order to ensure the security of laser communication network application , a laser communication phishing detection method based on multi- source heterogeneous data fusion analysis technology is proposed. First , collect the characteristics of laser communica- tion phishing , use D-S evidence theory to fuse the characteristics of laser communication phishing data from different sources and structures , then use support vector machine to detect and design the detection model of laser communica- tion phishing according to the special number , and finally carry out a simulation experiment. The results show that this method can effectively extract and accurately fuse the phishing feature data , Laser communication phishing detection The accuracy rate of laser communication phishing detection exceeds 95% , reducing the security risk of laser communi- cation network.