Abstract: The rail transit conventional track maintenance based on labor is challenged by various shortcomings, such as incorrect defect detection, under/over maintenance, difficult defect development tracking and evaluation, and difficult condition monitoring of materials in the warehouse, thus a track work intelligent operation and maintenance system is designed. The proposed system addresses these shortcomings by using an extensible multitier architecture design, realizing accurate identification and digitalized management of various structural defects and parts failure in rail transit. Combined with the advanced warehouse management and remote expert support, main-tenance strategies will be intelligently formulated, and relevant data will be updated. Thus multi-scenario intelligent operation and maintenance of rail transit track work is realized and system function-wise adjustment/update is available to users in terms of meeting various practical requirements, lowering track work cost and simplifying management mode, achieving both cost reduction and efficiency improvement for owner unit.