Presently blue water is the main issue in the field of water resources,research,whereas less attention has been paid to green water which is important to ecological systems and rainfell agriculture as a part of water resources.Hence,green and blue water during the period of 1973 1979 in Xixi Watershed of the Jinjiang Basin was calculated using the SWAT model,and their composition feature and temporal distribution were analyzed accordingly.The result was also compared with that of two watersheds in Northern China.(1)The total amount of green and blue water resources was 1.6 times of the amount of conventional water resources in Xixi Watershed;(2)The annual green and blue water in Xixi Watershed reached peak in flood season,and was the lowest in winter,and the green water flow was a major part of green water resources;(3)Because the climate is wet and the aridity index is small in the studied area,the blue water,which was 1.8 times of green water,was the major part of the water resources in Xixi Watershed,but the green water was still an important part even in Southern China.