A disclosed gel efficient biological fertilizer is prepared from the following raw materials in parts by weight: 20-40 parts of silkworm excrement, 20-30 parts of lotus root starch, 40-50 parts of chicken manure, 10-20 parts of wheat bran, 50-70 parts of pig manure, 15-25 parts of rice bran, 7-14 parts of sodium dihydrogen phosphate, 5-10 parts of sodium polyphosphate, 7-14 parts of manganese sulfate, 6-10 parts of zinc sulfate, 11-17 parts of urea, 4-6 parts of potassium dihydrogen phosphate, 5-8 parts of potassium sulfate, 3-7 parts of compound sodium nitrophenolate, 2-7 parts of naphthylacetic acid and 7-14 parts of humic acid. The provided gel efficient biological fertilizer is comprehensive in organic-fertilizer nutrients, balanced in nutrition and long in fertilizer efficiency, and is capable of promoting plant growth, reducing crop diseases and helping to obtain high output.