NOVELTY - Special organic-inorganic composite fertilizer, comprises (in parts by weight) decomposed organic matter (40-55), humic acid (10-15), monopotassium phosphate (3-5), urea (9-15), phosphorus diamine (5-10), potassium sulfate (13-17), zinc sulfate (0.5-1) and borax (0.3-0.5). The preparation of the fertilizer comprises preparing decomposed organic by pile fermenting edible fungi dregs (75-85), seed cake (15-20), and microbial fermentation inoculum (1-2), and air drying until the water content is 30-35 wt.%.    USE - The fertilizer is useful for root-inducing in jujube tree.    ADVANTAGE - The organic fertilizer and the inorganic fertilizer are combined to improve the soil fertility, which is capable of promoting the jujube tree to achieve high quality and high yield.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation of special organic-inorganic composite fertilizer, comprising (a) preparation of decomposed organic matter comprising weighing (in parts by weight) and mixing edible fungi dregs (75-85), seed cake (15-20), and microbial fermentation inoculum (1-2) completely and adequately, where the the water content of mixture is adjusted to 55-65 wt.%, the carbon-to-nitrogen ratio is 23-28 mass-%, the pH is 7-7.5, piling the mixture as a trapezoidal pile of 1.5-1.8 m high and unlimited long, punching downwards from the top in a density of 10-15 each square meter, covering a plastic film, aerobically fermenting. timing when the temperature of stock pile raises to 50 degrees C, fermenting for 5-7 days, turning over the stock pile, fermenting for 5-7 days again, turning over the stock pile for each 5-7 days, totally fermenting for 30-35 days, finishing the fermentation; air drying the fermented organic matter until the water content is 30-35 wt.%; and (b) preparation of organic-inorganic special fertilizer comprising weighing (in parts by weight) decomposed organic matter (40-55), humic acid (10-15), monopotassium phosphate (3-5), urea (9-15), phosphorus diamine (5-10), potassium sulfate (13-17), zinc sulfate (0.5-1) and borax prepared (0.3-0.5) in step (1) for mixing well, palletizing and obtaining the product.