NOVELTY - Fruit tree ecological fertilizer comprises 300-340 pts. wt. of dried poultry manure, 60-70 pts. wt. of weathered coal, 30-35 pts. wt. of fly ash, 10-12 pts. wt. of humic acid, 20-24 pts. wt. of urea, 13-15 pts. wt. of potassium chloride, 8-10 pts. wt. of potassium dihydrogen phosphate, 6-9 pts. wt. of magnesium chloride, 1-2 pts. wt. of sulfur, 6-9 pts. wt. of microorganism agent, 10-15 pts. wt. of soil conditioner, and water. The soil conditioner comprises 120-140 pts. wt. diatomite, 30-40 pts. wt. of charcoal, and 1-2 pts. wt. of nano toner.    USE - Fruit tree ecological fertilizer.    ADVANTAGE - The fruit tree ecological fertilizer improves the structure of the soil, and enhances the yield and quality of the fruit.    DETAILED DESCRIPTION - Fruit tree ecological fertilizer comprises 300-340 pts. wt. of dried poultry manure, 60-70 pts. wt. of weathered coal, 30-35 pts. wt. of fly ash, 10-12 pts. wt. of humic acid, 20-24 pts. wt. of urea, 13-15 pts. wt. of potassium chloride, 8-10 pts. wt. of potassium dihydrogen phosphate, 6-9 pts. wt. of magnesium chloride, 1-2 pts. wt. of sulfur, 6-9 pts. wt. of microorganism agent, 10-15 pts. wt. of soil conditioner, and water. The soil conditioner comprises 120-140 pts. wt. diatomite, 30-40 pts. wt. of charcoal, 1-2 pts. wt. of nano toner, 4-5 pts. wt. of metasilicate, 3-4 pts. wt. sodium selenite, 4-5 pts. wt. of zinc sulfate, 3-4 pts. wt. of sodium polyacrylate, 0.1-0.14 pts. wt. of citric acid, 2-3 pts. wt. of manganese sulfate, 6-8 pts. wt. of chitosan, 1-2 pts. wt. of eucalyptus oil, 2-3 pts. wt. of nano jade powder, 1-2 pts. wt. of ammonium persulfate, 2-3 pts. wt. of phytic acid, and water. The soil conditioner is prepared by: adding ammonium persulfate to the raw material; mixing the raw material and then heating at a temperature of 80-90 degrees C; stirring the mixture for 40-60 minutes; heating and concentrating the mixture for preparing a granule; and drying to obtain the product. An INDEPENDENT CLAIM is included for a method for preparing a fruit tree ecological fertilizer comprising crushing a dried poultry manure, then soaking with water for 6-8 hours and adding weathered coal, fly ash and microorganism agent in a fermentation tank that is sealed under normal temperature conditions for 25-35 days, turning once for every 2-3 days; adding sulfur and humic acid to the fermented material and then sealing for 5-10 days, turning once for every one day; mixing urea, potassium chloride, potassium dihydrogen phosphate, magnesium chloride and water to the mixture and heating and stirring the mixture to obtain the mixed liquid that is concentrated and spray dried to prepare mixed powder, and introducing the fermented material into a dryer to obtain the product.