Abstract: The present invention relates to a method and server for providing a probability of encountering other people and, more specifically, to a technique for calculating a probability of an encounter between a user and any other user by analyzing information provided by the users. The server for providing a probability of encountering other people according to the present invention comprises: a user information database unit for storing event information provided by two or more users; a schedule analysis unit for analyzing event information and extracting time information and space information of each of the users according to an information extracting algorithm so as to generate probability factor information; and a probability calculation unit for determining the degree of overlapping between the user probability factor information of each two users so as to calculate the probability that the two users encounter each other.