Abstract: Fluidized characteristics and emplacement mechanisms of rock avalanches are always prominent research hotspots and frontier issues in the international geological disaster field. The fluidized landforms generated during rock avalanche propagations are direct reflection of their high-speed fluidized behaviors, providing insights into their kinematics and dynamics and serving as crucial foundations for researching their emplacement behaviors. Focusing on the geomorphology of rock avalanches, this study presents a comprehensive review on the representative achievements in plan forms and geomorphic features of rock avalanches, and elaborates a series of typical geomorphic features on rock avalanche deposits and their formation mechanisms, as well as the important implications on the emplacement dynamics. Furthermore, the study proposes two emplacement model for unconfined rock avalanches and highlights the significant role of substrate on rock avalanche propagation. In conclusion, some key scientific issues are put forward and three potential solutions for future research are provided including: establishing the geological evidence-dependent evolving model of landforms, identifying the role of different factors on the formation of landforms, developing the path-dependent and progressive evolution emplacement model.