Taipei MRT is the forerunner of track technology in domestic track engineering. Since 1984, it has created many new technologies and successful records in the world for over 25 years. Early in the planning stage, due to restricted international contact, few reference sources were available, leading to the trackwork contractors being unable to follow the technology applied in the other countries. Nevertheless, with a 25-year accumulation of study and experience, Taipei MRT, by incorporating the suggestions of industry and consultants, has designed, implemented, and developed its own unique trackwork technology. This paper aims to discuss the trackwork carried out on the Xinzhuang & Luzhou lines, and the core technology of the Certification Consultant. Meanwhile, it also deals with the role of trackwork consultant in the early stage and the evolution of supervisor consultant on the implementation of the Xinzhuang & Luzhou lines, providing an explanation of advanced trackwork technology to serve for reference in future local trackwork.