拒马是一种木制的可以移动的防御障碍物。《古今事物考》称“拒马始于三代”。唐代的拒马，是用周径二尺的圆木为干，长短根据需要而定，圆木上安装长一丈的根本数根，将上端削尖，设于城门、巷口或要路，阻绝人马通行。唐以后，拒马分大、／J＼型两种。大型叫“近守拒马唐角枪 Juma is a wooden movable defensive obstacle. “Ancient and modern things test” that “refused to start in three generations of horses.” In the Tang Dynasty, the horse was made of logs with a circumference of two feet and the length of the logs was determined according to the needs. The root of a log was mounted on the log, and the tip of the log was sharpened at the gate, the alley or Road, blocking the passage of people. After the Tang, Juma points big, / J type two. Large called "Shouzhe Ju Tan Guan gun