This invention discloses an agent carrier, which is made by the water dissolvable paper. The mentioned water dissolvable paper comprises particles of Bacillus thuringiensis. When the agent carrier is dissolved, the particles of Bacillus thuringiensis will be released in the water. The mosquito larvae will be killed via the ingestion of the particles of Bacillus thuringiensis.本發明揭露了一種藥劑載具,所述藥劑載具主要由水溶性紙製作而成。其中,所述水溶性紙包含了蘇力菌(Bacillus thuringiensis)顆粒,當所述藥劑載具溶解時,蘇力菌顆粒會於水中釋出。而蚊子的幼蟲攝入所述蘇力菌顆粒之後便會死亡。10‧‧‧藥劑載具100‧‧‧水溶性紙100‧‧‧水溶性紙300‧‧‧固著膠300‧‧‧固著膠400‧‧‧蘇力菌顆粒500‧‧‧摺線A‧‧‧正面B‧‧‧反面