The invention relates to a special bacterial manure microcapsule preparation for mangrove. The preparation is characterized in that: s: 1) the preparation consists of a degradable micro-granular capsule with azotobacter and phosphate-dissolving bacteria for promoting growth of mangrove; 2) bacterial seeds of the azotobacter for promoting growth of mangrove is cultivated by an OAB culture medium; bacterial seeds of the phosphate-dissolving bacteria for promoting growth of mangrove is cultivated by a phosphate-dissolving bacteria selective culture medium SRSM; and 3) the degradable micro-granular capsule is prepared from stock solution of a wall material, stock solution of a core material, a hardener and a solidifying liquid. The preparation method is characterized by comprising the following steps: 1) the zotobacter and the phosphate-dissolving bacteria for promoting growth of mangrove are collected, sifted and cultured; 2) the microcapsule preparation is prepared; and 3) the bacterial manure microcapsule preparation is stored. The structure of special equipment has the characteristics that the special equipment comprises an air compressor (1), an air filter (2), a bacteria filter (3), a granule spraygun (4), a glue solution bottle (5), a vibrator (7) and a filter (8). The bacterial manure microcapsule preparation has the advantages of simple process, convenient operation, stable product quality, long shelf life and convenient storage and transportation.