Abstract: In this paper, Favorita and Purple and White potato varieties were used as the experiment material to study the phosphor absorption and distribution on coated drip irrigation potato of different phosphor application, Main results are as follows： with the growth process, the experiment has demonstrated that significant decreases in the P content of various organs in different potato species. The phosphorus contents of each organ gradually increased as the P fertilizer application was raised; with the advance of growing stages, The whole plant of phosphorus application amount showed a different degree of rising trend. The uptake accumulation of each organ were increased and the absorption rate were accelerated, which were due to the phosphor fertilizer increased. Phosphorus was easy to flow in potato plant, it was mainly concentrated distribution in blade in seedling stage, but was in the tuber in later stage of growth.