The invention discloses a method for obtaining MRO user information based on S1-MME signalling association. The method comprises the following steps of: S1, performing clock synchronization of signalling acquisition equipment and wireless side acquisition eNB equipment; S2, performing data source acquisition by the signalling acquisition equipment and the wireless side acquisition eNB equipment, and analyzing to obtain an S1-MME XDR ticket, an S1-U XDR ticket and a structural MRO file; S3, associating MR0 in MR with S1-MME XDR by taking the time, ECI and MMEUES1apID as key values; S4, associating MR0 with S1-U XDR by taking the time and IMSI as key values, so that MR data associated with each S1-U XDR is obtained; and S5, obtaining required related information according to the associated MR data and S1-U XDR. According to the method disclosed by the invention, MRO is associated with S1-U signalling after obtaining user information; related information of two types of data can be respectively obtained; and thus, all kinds of deep analysis of MR, signalling and user behaviours can be realized.