Different mass concentrations of talcum （talc）， Al2O3 （alumina） and kaolin microparticles were comparatively conducted to examine the submerged fermentation performance of Aspergillus niger on the basis of the production performance of ferulic acid esterases. Derived from the experiment results， it was concluded that microparticles could improve the enzyme activity of ferulic acid esterases produced by A. niger. Among the tested microparticles， adding 0.5 g/L talc powder， alumina， kaolin， respectively， could lead to the highest specific activity of ferulic acid esterases. This research provides a new way to optimize and design the morphology of high-yield filamentous fungi， and at the same time has great value in improving the activity of ferulic acid esterase produced by A. niger ZJUQH.