Based on the theoretical analysis of the track of direct free kick, this article attempted to provide parameters about the power of kicking, the part of the ball being kicked, shooting angel, and the placement of the ball over the wall.

• 通过对足球任意球运行轨迹的理论分析,计算出球运行轨迹的参数,量化了直接任意球的射门在击球力量、击球部位(偏心距)、射门角度,以及球体绕过“人墙”后的最终落点。