Mastering the temporal and spatial distributions of livestock manure is beneficial to the prevention and control of its pollution. Based on the method of excretion coefficient, the total amount of livestock manure, the discharges of COD, nitrogen and phosphorus during the years 2000-2015 were estimated to analyze the spatial and temporal distribution characteristics of livestock, and to evaluate nitrogen and phosphorus pollution in Sichuan Province. Results show that:(1) From 2000 to 2015, the average production of livestock manure in Sichuan was about 0.21 billion tons of pig excretion equivalent, which was mainly produced by cows, pigs, and poultry;(2) In 2015, the potential of biogas production from livestock and poultry manure was considerable, but most areas were polluted by livestock manure, among which Deyang and Ya'an reached the risk level of VI, seriously affected the environment;(3) The average nitrogen and phosphorus loads per unit area of arable land in Sichuan province were 78.45 kg/hm2(TN) and 13.57 kg/hm2(TP), which were lower than the EU’s standard of limitation on nitrogen(170 kg/hm2) and phosphorus(35 kg/hm2). However, most areas of Sichuan faced the risk of nitrogen and phosphorus pollution in 2015. Areas with higher risks from the release of nitrogen and phosphorus were mainly in economically developed regions such as Chengdu, Deyang and Yaan. In some areas such as Zigong and Luzhou, nitrogen and phosphorus pollutions were not serious. However, the breeding of livestock reached for nearly 50% of environmental capacity. Therefore, the total amount of livestock breeding in these areas should be controlled and some effective measures for reducing pollutants should be taken.

Key words：Livestock and poultry breeding; fecal pollution; temporal and spatial distribution; pollution prevention and control; Sichuan