This study was aimed to sort out and analyze the construction system of medical unions in China， understand the effectiveness and existing problems of the construction of intensive medical unions， and provide scientific basis for the subsequent improvement of the construction of intensive medical unions. Taking the Pukou Branch of Jiangsu People’s Hospital as an example， this study analyzed and made comparison from the aspects of hospital operation， talent team construction， scientific research and teaching and discipline development. The value of all hospital indicators increased， the medical service quality of the primary health care institution improved， and the residents’ trust and satisfaction on the primary health care institutions gradually improved. Based on the perspective of modern hospital management system， this study put forward some suggestions on strengthening the connotation construction of the intensive medical union system， the information interconnection， the homogenized management， and the hospital?district integration， which are of great significance to the construction of intensive medical unions.