College of Geo-exploration Science and Technology，Jilin University，Changchun 130026，China

In order to study the S-wave velocity structure in the southeastern part of Jilin Province，the authors use the resampled continuous waveform data of 39 fixed stations in the Jilin，Heilongjiang and Liaoning seismic networks，calculate the empirical Green function of Ｒayleigh surface wave by using the ambient noise cross-correlation of station pairs，extract the group velocity and phase velocity dispersion curve，and obtain the S-wave velocity structure image of the study area with a depth of 0 ～ 30 km by using the surface wave tomography method．The tomography results show that the S-wave velocity structure in the crust depth of the southeastern part of Jilin Province has strong lateral heterogenous characteristics． The velocity anomaly of the upper crust in the study area corresponds well with the geological structures such as the sedimentary basin，fault belts and orogenic belts，while the velocity anomaly of the middle and lower crust shows the characteristics of volcanic activities and magmatism．