The construction of large-diameter, long-distance pipe jacking often faces challenges in protecting existing structures and in-service pipelines. Verifying the safety and reliability of the non-excavation slurry-balanced pipe jacking process is of great significance for reducing construction interference and ensuring project benefits. This article focuses on a municipal project in Xiamen, Fujian, and describes the application process of changing the traditional plan of “laying a 207-meter DN2420 large-diameter steel pipe” to the non-excavation slurry-balanced pipe jacking process. The construction starting point is located at the southeast corner of an existing chemical dosing room (with many active water supply pipes, electrical wires, and cables above), and the endpoint is near the water sump pump station, outlining the key environmental conditions. In terms of quality management, full penetration butt welds on the steel pipes are subjected to non-destructive testing, with a focus on 51 key butt welds using X-ray inspection. The coating thickness of the steel pipes’ exterior surface is also tested to ensure that both welding quality and corrosion protection layer performance meet the standards. For construction monitoring, monitoring points are set according to the pre-established plan at the dosing room and underground pipeline locations. Data collected before and after construction show that structural displacement and settlement are within the allowable limits specified by the standards. The study shows: 1) The application of this process is effective in avoiding thrusts and interference to existing buildings and in-service pipelines, saving construction time and improving economic benefits, while ensuring construction quality and structural stability; 2) This slurry-balanced pipe jacking technology has excellent potential for promotion and can provide a reference for similar large-diameter, long-distance pipe jacking projects.