After the preliminary investigation and analysis of the Taicang explosion, it was found that the explosion happened in the underground space of No. 29 Junyue Haoting storefront. It can be ruled out that ammonium nitrate items caused the explosion, and the possibility of pipeline natural gas explosion has been basically excluded. In the Taicang explosion accident, 2 people died after unsuccessful rescue, and 9 were injured. On June 13, 2009 at 8:24 PM, at No. 29 Junyue Haoting on the side of National Highway 204 in Chengxiang Town, Taicang City, an explosion occurred.