NOVELTY - Producing chitin nourished red jujube comprises e.g. applying chitin organic based fertilizer by applying the total annual based fertilizer of weight 1/3-2/3 accounting for chitin organic based fertilizer after leaf falling, then applying the total annual based fertilizer of weight 1/6-1/3 accounting for chitin organic based fertilizer during the flowering period, applying the total annual based fertilizer of weight 1/6-1/3 accounting for chitin organic based fertilizer during the second fertilization of 70 days i.e. after the enlargement period of jujube.    USE - The method is useful for producing chitin nourished red jujube.    ADVANTAGE - The method increases the yield and is eco-friendly.    DETAILED DESCRIPTION - Producing chitin nourished red jujube comprises: applying chitin organic based fertilizer by (i) applying the total annual based fertilizer of weight 1/3-2/3 accounting for chitin organic based fertilizer after leaf falling, (ii) applying the total annual based fertilizer of weight 1/6-1/3 accounting for chitin organic based fertilizer during the flowering period, and (iii) applying the total annual based fertilizer of weight 1/6-1/3 accounting for chitin organic based fertilizer during the second fertilization of 70 days i.e. after the enlargement period of jujube; and applying chitin organic foliar fertilizer by (i) spraying chitin organic leaf fertilizer of 50-70 times for one time during germination stage, leaf expansion stage, flowering stage, fruit setting stage, young fruit stage, fruit enlargement stage, after fruit enlargement stage, whitening stage, coloring stage and red ring formation stage, and (ii) spraying chitin organic leaf fertilizer of 25-35 times for one time i.e. during 15 days prior to picking jujube and after picking, where the chitin organic based fertilizer is vermicompost organic fertilizer, the chitin organic foliar fertilizer is the saturated solution prepared by dissolving chitin powder (purity not less than 70%) in wood tussah solution.