Objective To discuss the application value of MSCT(Multi-slice Spiral CT) postprocessing technique in diagnosing tibial plateau comminuted fractures. Methods To Retrospectively analyze 120 patients with fracture of tibial plateau of our hospital treatment from January 2015 to December 2015. All patients were performed DR plain radiographs and spiral CT ,and they had post-processing technique like MPR and VR. Then the inspection results were classified into different type of Schatzker, and comparing the difference of Schatzker classification results of the two imaging examination on the fracture of tibial plateau. Results The coincidence rate of MSCT is significantly higher than DR flat piece in Schatzker classification for the tibial plateau fracture, the difference was statistically significant (P<0.05). Conclusion MSCT scans has certain advantages in the comminuted fracture of tibial plateau diagnosis, which can show comminuted fracture of tibial plateau in stereo, multi-plane and multi-angle, and more precisely shows the fracture morphology, site, type and degree of joint surface damage information. MSCT provides some basis for Schatzker classification of the comminuted fracture of tibial plateau, and improves the diagnosis and curative effect. which plays a guiding role and is worthy of popularization and application.