Abstract: The capacity of total phosphorous (TP) of five control sections (Laoyazhuang, Zuowei, Shixiali, Xiangshuipu, Bahaoqiao) in Hebei section of Yongding River Basin was calculated by load duration curve (LDC) method, and the temporal and spatial changes of pollutant capacity was analyzed based on the hydrological data of Yongding River Basin from 2002 to 2016 . Combined with 2010-2016 water quality monitoring data, the current pollution load of TP in each section of water was calculated, and the main types of pollution sources and the pollution load that should be reduced were analyzed. The results showed that there was great difference of TP capacity in time and space in Hebei section of Yongding River Basin, and the capacity of TP in downstream was relatively larger than that in upstream. TP capacity in five sections fluctuated greatly in different months and seasons, and the highest capacity of TP was mainly in July, October and November, while the lowest was mainly on January and February. Hebei section of Yongding River Basin was mainly affected by non-point source pollution emission. TP load of the other four sections needed to be reduced in different degrees in the high flow area, medium flow area and low flow area except for Laoyazhuang section in high flow area and medium flow area. The current TP load in Hebei section of Yongding River Basin exceeded the allowable load, so it was necessary to formulate total amount control targets and schemes at different time scales.