The study about the effect on Morchella angusticeps (M. angusticeps) caused by Paenibacillus amyloliquefaciens, P. amyloliquefaciens isolated from the stem base soil of M. angusticeps was performed and significant facilitation on mycelia growth and exoenzyme secretion of M. angusticeps happened. The result of experiments showed that the growth rate of M.angusticeps mycelia peaked on 5^th day, reaching 21.92%, when mycelia were treated with 20% fermentation broth of P. amyloliquefaciens (FBPa). Further studies conclusively pointed out that the facilitation was involved with extracellular enzyme of M. angusticeps according to its soluble protein concentration, keeping high-level during the 5 days. High-level activities were detected in laccase and protease determination when FBPa concentration increased to the range of 10% to 20%, and in amylase and cellulase determination when it reached 20% on 5^th day.