A use of an extract of cocoa rind in the manufacture of a medicament for boosting immunity of shrimps is disclosed. The extract of cocoa rind is administered to a shrimp to boost immunity of shrimp. Moreover, the extract of cocoa rind is obtained by extracting a sample of dried cocoa rind using an extractant. The sample of dried cocoa rind has a water content of 2-5%. The extractant is an aqueous ethanol solution with a concentration of ethanol of 90-98%.一種可可殼萃取物的用途，係用以製備提升蝦體免疫能力之藥物，該可可殼萃取物係投予一蝦體，以增強該蝦體之免疫能力；其中，該可可殼萃取物係由乙醇濃度為90～98%之一乙醇水溶液作為一萃取溶劑，萃取含水量為2～5%之一乾燥可可殼樣品所獲得。
