This study explored the nitrogen，phosphorus and potassium nutrient absorption thresholds and patterns of walnut fruit in different producing areas by summarizing the fertilizer field test data(2000-2019)and organizing the characteristic data of walnut yield and nitrogen，phosphorus and potassium nutrient absorption in four main walnut producing areas along the northwest，southwest，central and eastern coasts of China. The nitrogen，phosphorus and potassium nutrient absorption curves of walnut fruit were fitted using the programming solution method when walnut achieved the highest yield in different producing areas. Then the nitrogen，phosphorus and potassium absorption thresholds of walnut fruit were calculated. The results showed that，(1)The walnut yields in the eastern coastal and central areas were significantly higher than that in the southwest，and there was no significant difference between walnut yields in the northwest and the southwest areas.(2)The nitrogen，phosphorus and potassium nutrient absorption value of walnut fruit was the highest in the eastern coastal area，followed by the northwest and central areas，and the lowest in the southwest area. The nitrogen，phosphorus and potassium nutrient absorption laws in different producing areas were generally showed as nitrogen>potassium>phosphorus.(3)At the regional level，the values of walnut nitrogen，phosphorus and potassium nutrient intrinsic efficiency(IE)were ranked from high to low as the southwest，northwest，central and eastern coastal areas. At the nutrient elements level，the IE in each producing areas was both ranked as phosphorus>pstassium>nitrogen.(4)The general order of walnut nutrient absorption threshold was eastern coastal area>northwest area>southwest area>central area. The highest absorption ratios of nitrogen，phosphorus and potassium nutrients in northwest，southwest，east coast and central area were 1∶0.65∶0.85，1∶0.83∶0.85，1∶0.76∶1.04 and 1∶0.55∶0.59，respectively. The regional differences in the maximum absorption ratios of walnut nitrogen，phosphorus and potassium nutrients can be used to guide the walnut fertilization ratios in different producing areas. In the future fertilization management，it is suggested that the fertilizers of phosphorus and nitrogen should be appropriately increased and potassium reduced in the northwest area. The amount of fertilizer should be increased in the central area，and reduced in the southwest and east areas.