A storage type bottle cap having a misoperation prevention function, comprising an upper cap body, a lower cap body, and a sealing piece; the structure is simplified, the assembling process is simple, the costs are relatively low and the operation is convenient, the assembling mode of the upper cap body and the sealing piece meets different requirements of customers for the adding mode of formula materials in a storage cavity, and accidental leakage may not be caused in the mixing process of the formula materials; the sealing performance of the storage cavity is ensured by means of the arrangement of a sealing assembly, and the efficacy loss of the formula materials are caused due to the permeation of air, water, impurities, and other objects is avoided; first anti-loose structures and a second anti-loose structure in the upper cap body and the lower cap body are arranged so that the phenomena that the sealing performance of the storage cavity is damaged due to reverse rotation caused by misoperation or bumpy vibration in the storage and transportation processes under the state that the storage type bottle cap is not used are avoided; and the arrangement of a third anti-loose structure in the upper cap body and the lower cap body ensures that a reverse-rotation separation phenomenon may not occur after the storage type bottle cap is used, so as to ensure that a user can complete the separation between the whole cap body and a bottle body at one time by means of the operation of twisting the upper cap body or the lower cap body.