Organic fertilizer is an effective way to alleviate the degree of soil salinization and improve soil fertility. In order to evaluate the impact of manure treatment on chemical properties and enzyme activities of coastal solonchak soils,the manipulations composed of coastal solonchak soil(CK), chicken manure(CM), pyroligneous acid(PA)and chicken manure co-applied with pyroligneous acid(CP)were conducted by using soil culture method. The results indicated that soil pH and EC value under CP significantly decreased by 0.34 and 14.52% in comparison with CM.The nutrient contents and enzyme activities of coastal solonchak soil by applying chicken manner(CM and CP)were significantly higher that under PA treatment. Compared with CM treatment,the concentrations of total nitrogen,available phosphorus,dissolved organic carbon,dissolved organic nitrogen and nitrate nitrogen under the CP treatment significantly increased by 55.32%,103.35%,16.64%,55.68% and 45.43%,respectively; Meanwhile,the activities of αglucosidase,βglucosidase,βNacetylglucosaminidase,leucine aminopeptidase,alkaline phosphatase,polyphenol oxidase and dehydrogenase increased by 49.58%,67.85%,40.84%,104.94%,17.66%,62.05% and 37.50%,respectively. Regression analysis indicated that higher contents of organic matter,total nitrogen,available phosphorus,dissolved organic carbon and dissolved organic nitrogen enhanced soil enzyme activities. In conclusion,chicken manure coapplied with pyroligneous acid alleviated pH,improved nutrient content and enzyme activities of coastal solonchak soils.