1. A method for ranking based on interpersonal distances, comprising: obtaining, by a ranking server, objects queried by a query request based on the request initiated from a user client and obtaining a reference user group corresponding to each queried object; obtaining, by a ranking server, interpersonal distances between users in the reference user group and a user who initiates the query request, and obtaining rating scores of each object queried by the request that are given by the users in the reference user group; and determining, by a ranking server, a user relationship ranking index of each object based on the interpersonal distances and the rating scores, and ordering the objects based on respective user relationship ranking indices of the objects.