///Beach morphodynamic state is one of the important contents to understand beach processes and land-ocean interaction. Few studies on geomorphology and deposit for sandy beaches in response to strong-tidal action in China have ever been conducted. Based on the measured profile change and associated depositions of Yintan Beach in March, 2010, deposition characteristics of strong-tidal beach profile in response to externally-driven actions were analyzed. The results show that: 1) it is of simple geomorphologic composition for Yintan Beach, and its geomorphologic state is attributed to one of the dissipated types; 2) deposition of Yintan Beach is a kind of sand with main compositions of fine sand and medium sand. The sorting of depositions are relatively well; and 3) depositions along the transverse profile for Yintan Beach can be divided into three types: backshore cell, beachface, and in-shore part. Sediments in the backshore part consist of mainly saltation load under the control of wind action. Sediments in the beachface are of bilateral movement resulted from swash actions driven by broken waves.