Abstract: From the late primitive society to Xia Dynasty, the generating mode of combat effectiveness in the chariot war era is quietly rising. With the main indicator that the weapon materials shift from wood and stone to bronze, the system of military service fr om the tribal militia to the national standing military system, the combat form from free combat to the primary array warfare, and the generated and transformed military discipline, military education and military training as the auxiliary, finally, the generating mode of combat effectiveness of chariot war era whose cornerstone is bronze weapons, whose support is the national standing military system, whose main weapons are chariots and whose carrier is the coordinated operations of the chariots and infantry, is initially formed.