自行火炮是第一次世界大战时出现的。当时各资本主义国家都试制了各种口径和结构的自行火炮。但这些火炮在双方交战中並沒有起到任何明显的作用。第二次世界大战前,国外已开始研制自行火炮,由于当时的军事理论家对未来战爭的性质有不正确的看法,因而,对炮兵支援步兵和坦克作战的作用,对白行火炮的作用,不能作出正确的判断。这样,在战爭中德国军队主要是使 Self-propelled guns appeared during the First World War. At that time, all capitalist countries experimented with self-propelled guns of various caliber and structure. However, these artillery guns did not play any significant role in the fighting between the two sides. Before World War II, foreign countries started to develop self-propelled artillery. Since the then military theorists had incorrect views on the nature of future wars, the role of artillery in supporting infantry and tanks and the operations of white artillery could not Make the right judgment. In this way, the German army is mainly used during the war