The field experiment was conducted to study the nutrient requirements ofnitrogen，phosphorus and potassium inquinoa and its nutrient limiting factors，in order to provide a reasonable fertilization scheme for large -scale promotion andefficient production ofquinoa.In thisexperiment， ‘long li 1’was used as a material to carry out the field fertilizer deficiencytest，and the dry matterquality，nutrient content and accumulation amount of quinoa in different growth stages in the wholefertilization area wereanalyzed.The results showed that the booting stage and the filling stage were the two stages in whichquinoa had the largest dry matter accumulation and the fastest daily accumulation during the whole growthperiod.The drymatter accumulation at the booting stage accounted for 48.14% of the total dry matter，and the daily accumulation of drymatter was 6.42g，and the accumulation of dry matter in the filling period accounted for 27.93% of the total drymatter，andthe daily accumulation of dry matter was 1.58 g.The amount and rate of nitrogen absorption of quinoa reached peak value during the flowering-bootingstage，the absorption amount accounted for 29.97% of the totalabsorption，and the absorption rate reached 7.15 kg·hm-2·d-1.The maximum phosphorus absorption period of quinoa was at the booting -filling stage， which was 17.49 kg·hm-2，accounting for 32.70% of the total，but the absorption rate was the highest during the flowering -booting stage，which was 0.96 kg·hm -2·d-1.The booting -filling period was the period in which quinoa had the highestpotassium absorption，which was 103.24 kg·hm -2，accounting for 31.09% of thetotal，and the absorption rate was the fastest at the flowering-bootingstage，which was 6.30 kg·hm -2·d-1.The cumulative amounts ofnitrogen，phosphorusand potassium absorption per unit area were353.88，53.63 and 333.62 kg·hm -2，the ratio of which was 6.60∶1∶6.22.Total application ofN，P，and K significantly increased the yield ofquinoa.Compared with the treatment withoutfertilizer，the treatments of nitrogendeficiency，phosphorusdeficiency，potassiumdeficiency，and total application increased theyield from 18.2% to118%.The yield of all treatments with nitrogen increased by 84.2% compared with the treatmentswithoutnitrogen.All treatments with phosphorus increased by 37.4% compared with the treatment withoutphosphorus.Alltreatments with potassium increased by 5.7% compared to the treatment withoutpotassium.The order of nutrient factors thatrestricted the growth and yield of quinoa wasnitrogen>phosphorus>potassium.