In order to alleviate the problem of the hardened soil due to the accumulation of insoluble phosphate,a phosphatesolubilizing fungi strain SM1 had been isolated from the Jiangsu seashore saline soil.Strain SM1 was identified as Apophysomyces sp.,and how its growth,metabolism and phosphatedissolving ability were affected by pyroligneous acid was tested.The results showed that strain SM1 grew the best under 0.1% pyroligneous acid concentration.The strain SM1 could decompose different phosphorus forms,especially for the tricalcium phosphate.The available phosphate was improved from 93 mg·L-1 to 246.9 mg·L-1.Although pyroligeneous acid didnt dissolve the tested phosphate resource,but it promoted the solubilizing capability of strain SM1 in the liquid phosphate rock powder.Strain SM1 improved the available phosphate from 79 mg·L-1 to 1153 mg·L-1.In conclusion,phosphatesolubilizing fungi strain SM1 mixed with pyroligeneous acid had great potential to improve phosphorus utilization rate in saline soil.