A field experiment was carried out to study the effects of the application of a new soil conditioner to grain yield，water use efficiency (WUE),and phosphorus fertilizer use efficiency(PUE) of winter wheat.Results showed that the application of the new soil conditioner could improve grain yield,WUE,and PUE. When the new soil conditioner was used at 1 500 kg/ hm² in a wheat field，grain yield and WUE were increased by 15% and 21.65%,respectively. PUE was 2.92% higher than that under single application of phosphorus(P) fertilizer. Grain yield by applying the new soil conditioner with irrigating water at 33.3 mm level was 28.57%more than that under control and mixing with P fertilizer could increase grain yield by 42.86%.PUE was 11.11% higher than that by single application of P fertilize and WUE was up to 25.06 kg/ (hm²·mm).