The utility model provides a cloth medicine support of explosion welding composite sheet, this support include the upper and lower layer backup pad that is parallel to each other, surface contact under upper backup pad and the compound plate, and lower floor's backup pad is located and contacts with the ground sand and soil, the fixed stay of several support piece is passed through to upper and lower layer backup pad. The utility model provides a difficult problem of thick plate explosion welding cloth medicine, improve the operating efficiency, guarantee the explosion welding quality.