The invention relates to a specific preparation for removing bacterial wilt of ginger, which mainly adopts marine organism extracts as a main antibacterial preparation according to a formula and is mainly used for preventing and treating the bacterial wilt of ginger in the growing process of the ginger and purifying soil of a ginger field. The specific preparation has the advantages that firstly, the bacterial eliminating rate of the preparation can reach 99.99 percent as the pure-natural marine bioactive substances are adopted; secondly, the preparation can be used for purifying the soil, creating an excellent ginger growing environment and keeping the ginger in an environment without disease infection; thirdly, the preparation can improve the absorption of the ginger to marine-organism-source nutrient substances to 80%, improve the regulation capability, and assist the ginger in resisting disease invasion; fourthly, the specific preparation is nontoxic, easily degradable, pollution-free and harmless to a human body; fifthly, the immunity of the human body can be improved after people eat the ginger for a long period of time as the specific preparation contains chitosan; and finally, the specific preparation is simple in process is simple, can reduce the use amount of chemical pesticide, and is low in cost.