NOVELTY - Poultry waste chemical treatment method comprises preparing fresh poultry feces into solution, adding nitrogen-fixing agent and standing, neutralizing and filtering to obtain primary filtrate and filter cake, and drying as feed; adding disinfectant, deodorizer and decolorizer to the solution, stirring, heating, curing, cooling, filtering and drying; and recovering the filtrate, stirring and evaporating, cooling and crystallizing, dewatering to separate the crystalline solid ammonium type compound fertilizer as farmland fertilizers, and taking the mother solution for re-crystallization.    USE - Method for treating poultry waste chemical.    ADVANTAGE - The method is simple and economical, and is matched with intensive poultry farms to form an industrial production, which is safe, clean and environment friendly, and saves a lot of cost.    DETAILED DESCRIPTION - Poultry waste chemical treatment method comprises:    (A) preparing fresh poultry feces to 20-60% (preferably 40) of solution, where the weight of the solution is 5 kg, in which the fresh poultry feces are 2 kg and the water is 3 kg;    (B) adding a nitrogen-fixing agent at 1-15% of the solution, and standing the solution till the pH value of the solution does not change;    (C) neutralizing the pH value of the solution to 8.5-10.0 under stirring;    (D) filtering the neutralized solution with a 60-200 meshes of filter cloth for once to obtain a primary filtrate and the filter cake, and drying the filter cake via a drier as feed;    (E) metering the neutralized solution and adding 1-10% of disinfectant relative to the weight of the filtrate, 1-5% of deodorizer and 1-15% of decolorizer relative to the weight of the filtrate into the filtrate, uniformly stirring the solution, heating the solution to boil, standing for curing, cooling the solution to room temperature and then filtering the solution for the second time, and drying the filter cake as feed; and    (F) detecting the concentration of baume in the secondary filtrate, recovering the filtrate when the concentration of the baume in the filtrate is greater than 25 degrees baume, stirring and evaporating the solution in an evaporator, cooling and crystallizing the solution when the concentration of baume in the filtrate is 40-70 degrees baume, then dewatering the product to separate the crystalline solid ammonium type compound fertilizer as farmland fertilizers, and taking the mother solution for re-crystallization.