The present invention relates to calcium-chitosan which is nutritionally excellent by containing calcium, a manufacturing method for the same and a manufacturing method of calcium-chitosan salt using the chitosan. According to the invention, calcium-chitosan, produced by processing a shell of crustaceans, which calcium contained in shells of crustaceans is left, and a manufacturing method for the same, and a manufacturing method of calcium-chitosan salt using the same are provided. [Reference numerals] (AA) Washing crab shells； (BB) Protein removal process(immersing the crab shells in 5% of sodium hydroxide solution)； (CC) Washing by obtaining solids； (DD) Deacetylation process(immersing the solids in 50% of sodium hydroxide solution)； (EE) Washing by obtaining solids(calcium-chitosan)； (FF) Drying본 발명은 칼슘이 함유되어 영양학적으로 우수한 칼슘-키토산 및 그 제조방법과, 이러한 키토산을 이용한 칼슘-키토산 소금을 제조하는 방법에 대한 것이다.본 발명에 따르면, 갑각류의 껍질을 가공하여 제조되며, 갑각류의 껍질에 함유된 칼슘이 잔존되는 칼슘-키토산 및 그 제조방법과 이를 이용한 칼슘-키토산 소금을 제조하는 방법이 제공된다.
