The invention discloses a user recommendation method and device based on a block chain, equipment and a storage medium, and belongs to the technical field of block chains. The embodiment of the invention provides a technical scheme for recommending marriage friends by utilizing a block chain, specifically including the steps: storing the
gene information of the user in the block chain, and when the
user needs to recommend the marriage object, matching the
gene information of the user with the
gene information of other users respectively to find the user matching the gene information of the user, so that the proper marriage object is recommended to the user. As the block chain technology has the characteristic of decentralization, the block chain is used for storing the gene information, toavoid the risk of data leakage caused by the fault of the centralized node, and avoid the risk of gene
information leakage of a user. Moreover, since the gene information contains rich characteristics such as characters and gene genetic risks, the marriage objects are matched by using the gene information, so that the marriage objects generally matched with the characters of the user can be found, and the risk of gene inheritance is avoided.