The Lingxi 8th Road Utility Tunnel Project is one of seven newly built utility tunnels for adapting the rapid development demand of city and upgrading the municipal construction standards in Gongzhuling City of Jilin Province. The geographic position, site conditions and hydrogeological situation of this utility tunnel are studied and analyzed. The pipelines into utility tunnel are heating pipeline, water supply pipeline, reuse water pipeline, electric power cable and communication cable. According to the technical standards, the plane, vertical section and cross section of this utility tunnel are designed. In view of the specific problems encountered by the utility tunnel in the ancient river area, the key points of structural design of foundation pit support, utility tunnel reinforcement, foundation, floating resistance and water resistance are described in detail.