The present invention is solid fermentation process of steam blasted stalks to produce microbial grease. The process includes the following steps: mixing steam blasted stalks, wheat bran and water in the solid/liquid ratio of 2-3 to 1, sterilizing at 121 deg.c for 40-60 min, inoculating grease microbe seed liquid and cellulose, mixing, fermenting at 25-32 deg.c for 7-11 days, stoving the fermented material, and extracting with organic solvent to obtain microbial grease. The process has grease yield of 6-8 % and cellulose utilizing rate of 75-85 %. The present invention has low cost and wide application foreground.