NOVELTY - Silkworm excrement fermenting powder comprises 5-8 pts. wt. sodium bicarbonate, 10-20 pts. wt. dibasic calcium phosphate powder, 10-20 pts. wt. calcium sulfate powder, 20-30 pts. wt. cow dung powder and 0.01-0.2 pts. wt. Enterococcus faecalis.    USE - The powder is useful for fermenting silkworm excrement and preparing fertilizer and feed (all claimed).    ADVANTAGE - The powder enables harmless fermentation of silkworm excrement, and the preparation process of fertilizer and feed using the powder is easily understandable and suitable for practical applicability by farmers.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of the silkworm excrement fermenting powder involves fermenting cow dung heap for 20-30 days, drying and grinding into a cow dung powder, and mixing the cow dung powder with sodium bicarbonate, dibasic calcium phosphate powder, calcium sulfate powder, and E.faecalis; (2) use of the powder for fermenting silkworm excrement and preparing fertilizer by (a) cleaning silkworm excrement, mixing 0.1-0.3 kg silkworm excrement and 20-30 kg silkworm excrement fermenting powder, mixing microbial agent in 70-100 kg water, and spraying the inoculum on 360-450 kg silkworm excrement and fermenting powder mixture, (b) transferring and stacking the mixture in a fermentation chamber with protecting roof and a port communicating to external environment, and (c) fermenting the mixture at 70-82 degrees C for 7-8 days to obtain fertilizer which can be used directly, where during the process pathogens are inactivated/killed, and if the fertilizer is not required for immediate use then the fertilizer is subjected post-treatment which comprises stacking fermented mixture in fermentation chamber; and (3) use of the powder for fermenting silkworm excrement and preparing feed by (a) cleaning the silkworm excrement, mixing 0.1-0.3 kg silkworm excrement and 20-30 kg silkworm excrement fermenting powder, and performing steps (b) and (c) mentioned above.