Beach morphodynamic provides a theoretical framework for understanding the beach morphology and coastal dynamic environment, and has important guiding significance in beach protection and development. In order to determine the beach classification on the Leizhou Peninsula, 7 quantifiable beach characteristics about geological background, beach morphology, beach sedimentation and coastal dynamic factors were selected. Results show that: (1) beaches on the Leizhou Peninsula coast can be divided into 6 groups: reflective group, low tide terrace/reflective group (with rip current), sand bar-trough/middle state group, barred dissipative group, ultra-dissipative group and low tide terrace/reflective group (without rip current). (2) Wave, tide, sediment characteristics and coastal background of geological structure have different effects on the beach state in the study area. Factors have different influences on different coastal sections on Leizhou Peninsula. Geological background is an important factor in beach classification. (3) Because the Ω-RTR model is more focused on dynamic and sedimentary factors in identifying beach state, classification results derived from Ω-RTR model are slightly different from those from cluster analysis. As a whole, the Ω-RTR model can effectively distinguish beach state type and is an effective means to understand beach morphodynamic system.