Abstract: 【Objective】 To investigate the relationship between soil total phosphorus and soil available phosphorus (Olsen-P) and the response to phosphorus budget, that under the long-term different manure management practices in grey desert soil, and investigate the transformation characteristics of phosphorus in grey desert soil, which provides a reference for the scientific application of phosphate fertilizer and oriented cultivation of soil quality. 【Methods】 Taking the long-term positioning experiment of different fertilizer management that started 1989 as the object to analyze the relationship between soil phosphorus activation coefficient (PAC), budget and soil available phosphorus (Olsen-P) response to soil budget. 【Results】 The PAC of soil treated with NP, PK, NPK and NPKS showed a parabolic change with fertilization years, and reached its peak value at the 16th year.The PAC of soil treated with NPKM and 1.5NPKM presented a very significant linear positive correlation with fertilization years (P<0.01), and the annual increase rate was 0.23% and 0.42%, respectively.CK and NK were deficient in soil apparent phosphorus in the current season, and the average phosphorus deficiency was 8.9and 15.5 kg/hm², respectively.NP, PK, NPK, NPKS quarter average value of a surplus of soil phosphorus were 35.4, 38.9, 32.3 and 25.4 kg/hm², NPKM, 1.5 NPKM treatment in the surplus value of soil phosphorus were 49.6, 127.8 kg/hm², annual amount of surplus with the planting fixed number of year was falling, P processing increment and the total available P in soil was significant correlation between profit and loss, every surplus of 100 kg/hm² phosphorus, Olsen-p concentration increased by 4.02 mg/kg. 【Conclusion】 Fertilization methods and years can significantly affect the PAC and P profit and loss of grey desert soil, and the application of organic fertilizer can significantly increase the PAC and P surplus of soil; There is peak value of PAC and p in soil when only fertilizer is applied or straw applied.