The invention discloses a method for calculating the location of a mobile subscriber of an IMSI (International Mobile Subscriber Identity) number by an LTE network according to records of a wireless measurement report (MR). The method comprises the steps of 1, querying related fields according to the positioned imsi number and time in a core network signalling call history record (CHR) database; 2, finding out a corresponding Serving Cell ID, a Neighbor 1 Cell ID, a Neighbor 2 Cell ID and a Neighbor 3 Cell ID in an MR database; and 3, calculating the location of the IMSI subscriber through querying a base station basic information database. The method solves a problem of great positioning error caused by a circumstance that application of the MR cannot effectively correspond a specific IMSI subscriber to information of the base station basic information database.