In order to explore the effect of combined application of nitrogen fertilizer and wood vinegar on the chlorophyllcontent，nutrient absorption and accumulation，yield and quality of spring wheat under conventional nitrogen fertilizerrate，using the wheat‘Liaochun 18’as the testmaterial，the effects of nitrogen fertilizer combined with wood vinegar on SPADvalue，nutrient absorption and accumulation，yield and quality of spring wheat were studied through potexperiments.Theresults showed that compared with the control treatment without woodvinegar，the combined application of different amountsof wood vinegar with nitrogen fertilizer increased the SPAD value of springwheat，promoted the absorption and accumulationof nutrients by spring wheatplants，and improved yield andquality.When the dosage of wood vinegar was 0.4mL/kg，theabsorption and accumulation ofnitrogen，phosphorus，potassium and total nutrients by spring wheat plants were thelargest.Compared with the control treatment without woodvinegar，they were significantly increased by26.36%，72.86%，45.61%and31.26%( P<0.05).In terms of yield and yieldcomponents，the treatment with dosage of 0.4 mL/kg of wood vinegar wassignificantly better than the treatment without woodvinegar，and the yield was significantly increased by12.16%，comparedwith the control treatment( P<0.05).In terms of quality，the treatment with dosage of 0.4 mL/kg of wood vinegar wassignificantly better than the controltreatment，in which the protein and starch content were significantly increased by 5.47%and8.81%，respectively，compared with the control treatment( P<0.05).Under the experimental conditions，different amounts of nitrogen fertilizer combined with wood vinegar can promote the growth of spring wheat plants and the absorptionand accumulation of nutrients，increase leaf chlorophyllcontent，and increase crop yield andquality，and the effect the best when the dosage of wood vinegar is 0.4 mL/kg.