This research focused on the seasonal,annual and different levels precipitation variation tendency in Urumqi based on the daily precipitation data during the period from 1961 to 2010,and the linear tend analysis, Mann-Kendall rank statistical test were used in the study. The results showed that during the past 50 years,the annual precipitation was 262. 6 mm in Urumqi,and the days of precipitation was 83. 6 d. There was a increasing trend in annual precipitation and days,and the speeds were 30. 4 mm/10a and 1. 9 d /10a. In different seasons, the precipitation was all increased. The largest contribution for seasons was spring32. 3%),and the smallest one was winter12. 5%). For the precipitation days,they were all increased except autumn. In different levels, the amount and days of light precipitation was the biggest for annual precipitation37. 8% and 63. 6%). For both the amount and the days of precipitation,only the trace precipitation reduced slightly,the rest of precipitation levels were all increased. The significant increasing mutations of annual precipitation and days happened in 1979. The significant mutations of seasonal precipitation happened in 1968,1980,1974 and 1983. The precipitation days had no significant mutations.