The characters of mineral nutrition uptake and efficiency of tiller production in upland rice were studied with pond culture experiment.The results indicated that: the soil moisture remarkably influenced N,P,K nutrition uptake.With the improvement of the content of soil moisture,the mineral nutrition uptake amount improves notably.During the early tillering stage,the nutrition absorption amount of N,P and K at 65% soil moisture were 74.1%,43.9% and 50.8% of 100% soil moisture respectively,and at later tillering stage,the N,P and K absorption amount of 65% were 41.4%,18.6% and 27.5% of 100%.The maximum efficiency of tiller production with mineral nutrition was 85% of soil moisture,the mineral nutrition of N,P and K tillering productive efficiency of 85% were 35.7%,140% and 81.8% more than 100%,respectively.The mean tillering productive efficiency were P>K>N.