NOVELTY - A biological organic compost comprises main material comprising fish bone, shellfish, kitchen waste, peat and lime powder, and auxiliary bacteriophage comprising coenzyme a, coenzyme q, ergosterol, kasugamycin, mites prime, rhizoxin, nitrogen-fixing bacteria prime, phosphorus bacteriocin, cephalosporin antibiotic and avermectin compound.    USE - Biological organic compost (claimed).    ADVANTAGE - The biological organic compost provides excellent fertility, promotes plant growth, inhibits absorption of pests and growth of weeds, and is environmentally-friendly.    DETAILED DESCRIPTION - A biological organic compost comprises main material comprising 500-1000 pts. wt. fish bone, 1000-2000 pts. wt. shellfish, 5000-7000 pts. wt. kitchen waste, 3000-5000 pts. wt. peat and 2000-3000 pts. wt. lime powder, and auxiliary bacteriophage comprising 100-400 pts. wt. coenzyme a, 100-400 pts. wt. coenzyme q, 300-600 pts. wt. ergosterol, 500-800 pts. wt. kasugamycin, 600-900 pts. wt. mites prime, 500-700 pts. wt. rhizoxin, 400-800 pts. wt. nitrogen-fixing bacteria prime, 300-500 pts. wt. phosphorus bacteriocin, 300-600 pts. wt. cephalosporin antibiotic and 600-700 pts. wt. avermectin compound. An INDEPENDENT CLAIM is included for preparation of biological organic compost, which involves calcining shellfish for 20-30 minutes, cooling, mixing fish bone, grinding to a powder of 50 mesh, crushing kitchen waste, and dehydrating to obtain debris, adding coenzyme a and coenzyme q, stirring, catalyzing at high temperature for one day to obtain a material, digging 3M width, 2.5 M area with 1M deep to form a composting pool, adding the obtained material to the dug pit, adding obtained fish bone and shell powder, stirring, sprinkling with water to make the material wet, covering, and composting for 2-3 days, taking peat, lime powder, ergosterol, kasugamycin and mites prime, and stirring, 7.adding to the compost dug pit, stirring, exposing in sunlight for 2 days, and composting for a week, removing organic fertilizer, and drying, adding rhizoxin, nitrogen-fixing bacteria prime, phosphorus bacteriocin, cephalosporin antibiotic and avermectin compound, and stirring.