Field experiment was carried out to study the effects of different phosphorus applications on soil available phosphorus and phosphorus absorption of spring maize. The results showed that the content of soil available phosphorus increased with the application of phosphorus, and each treatment was significantly different in seedling, and it tended to be the same when mature. The phosphorus absorption in plant increased with the application of phosphorus, and the phosphorus absorption was different with different ratio between basal fertilizer and top application. The production increased with the application of phosphorus within a certain limit and decreased beyond some extent.