The gear-type mixture embankment is a new concrete structure adopted in the first phase of the deep-water channel project on the Yangtze River，and the relevant study is still in an early stage. To analyze its mechanical features and expand its application in later engineering，we numerically analyze the impacting factors for the current force over the gear-type mixture embankment by the CFX software. The results show that the current force over the gear-type mixture embankment is composed of the hydrodynamic pressure and the hydrostatic pressure difference between the front and the back of the embankment body. The current force grows as the incident velocity，incident angle，and relative embankment height increase. The force and the incident velocity manifest an approximate square relationship when the velocity is small. When the incident velocity exceeds a certain limit，the current force and the velocity are in an approximate proportional relationship. A sensitive value is observed for the impact of the relative embankment height on the current force whereby the height has a larger impact on the current force when it is near the sensitive value.