Abstract: Using the methods of gray clustering and gray connecting analysis, the climatic factors, i.e. temperature, humidity, rainfall of the provenance of Ziziphus mauritiama and the regions that plan to introduce the genus Ziziphus mauritiama in, are fully analyzed and compared in the present paper. According to the results, the map of climatic zone suitable to introduce Z.mauritiana is worked out. As to the limited factors of the different regions, the problems, which should be paid attention to, are put forward.