The present invention relates to a method for preparing an oral cleaning agent containing mineral calcium, and more particularly, to a method for preparing an oral cleaning agent containing mineral calcium, comprising the steps of: (1) preparing mineral calcium； (2) combining the mineral calcium prepared in step (1) with a mouthwash raw material； And (3) producing an oral cleanser with the formulation blended in step (2). In addition, the present invention relates to an oral cleaning agent containing mineral calcium, and more specifically, to the oral cleaning agent, characterized in that the manufactured by using a blend in which the mineral calcium is mixed with the oral cleaning agent raw material. According to the oral cleaning agent including the mineral calcium proposed in the present invention and a method for producing the same, by including the mineral calcium, the oral cleaning agent can have excellent antimicrobial by itself even without including other antimicrobial composition. In addition, according to the oral cleaning agent containing a mineral calcium proposed in the present invention and a method for producing the same, by using the mineral calcium excellent in antimicrobial properties, it is possible to secure the necessary antimicrobial power in a small amount compared to the case of using other antimicrobial compositions. In addition, according to the oral cleaning agent containing a mineral calcium proposed in the present invention and a manufacturing method thereof, since it is implemented in the form of oral cleaning agents frequently used in everyday life, the antibacterial effect by the mineral calcium contained in the oral cleaning agent continuously It is maintained and can alleviate and prevent gum inflammation and inflammation in the mouth, as well as the dental caries Streptococcus mutants. Furthermore, according to the oral cleaning agent containing the mineral calcium proposed in the present invention and a method for manufacturing t
