NOVELTY - Biological organic compound fertilizer comprises 40-50 pts. wt. pig manure dry excrement, 30-40 pts. wt. straw, 20-30 pts. wt. potassium sulfate, 10-15 pts. wt. zinc chloride, 11-13 pts. wt. zeolite powder, 12-16 pts. wt. meerschaum powder, 6-8 pts. wt. seaweed, 70-90 pts. wt. swill, 1-2 pts. wt. effective microorganism (EM), and 9-12 pts. wt. soil improving agent.    USE - Biological organic compound fertilizer used for improving physical and chemical properties of soil, and promoting plant growth.    ADVANTAGE - The method is simple and low cost, and has easy to obtain raw materials.    DETAILED DESCRIPTION - Biological organic compound fertilizer comprises 40-50 pts. wt. pig manure dry excrement, pts. wt. 30-40 pts. wt. straw, 20-30 pts. wt. potassium sulfate, 10-15 pts. wt. zinc chloride, 11-13 pts. wt. zeolite powder, 12-16 pts. wt. meerschaum powder, 6-8 pts. wt. seaweed, 70-90 pts. wt. swill, 1-2 pts. wt. effective microorganism (EM), and 9-12 pts. wt. soil improving agent. The soil improving agent comprises 100-120 pts. wt. attapulgite, 2-3 pts. wt. quick lime, 3-4 pts. wt. nano jade powder, 1-2 pts. wt. nanocarbon powder, 1-2 pts. wt. ascorbic acid, 3-4 pts. wt. sodium selenite, 4-5 pts. wt. starch, 2-3 pts. wt. polyvinyl alcohol, 1-2 pts. wt. ricinoleic acid, 1-2 pts. wt. sodium petroleum sulfonate, 4-5 pts. wt. zinc sulfate, 3-4 pts. wt. manganese sulfate, 4-5 pts. wt. ammonium molybdate, 1-2 pts. wt. tung oil, 3-4 pts. wt. castor root, 7-8 pts. wt. camphor tree bark and water; prepared by crushing castor root and camphor tree bark into powder, grinding attapulgite and calcined lime into paste, adding water, heating to 80-90 degrees C, adding nano jade powder, nanocarbon powder, ascorbic acid, sodium selenite, and tung oil, continuously grinding for 30-45 minutes, adding remaining components, uniformly stirring, concentrating, granulating, and drying. An INDEPENDENT CLAIM is included for preparation of fertilizer comprising crushing straw into 100 mesh, adding pig manure, swill water and EM microbial inoculum, uniformly stirring, fermenting at normal temperature for 12-16 days; adding zinc chloride zeolite powder, sepiolite powder, and sodium alginate powder, uniformly stirring, continuously fermenting for 2-3 days; adding remaining raw materials, uniformly stirring, drying and granulating.