Abstract: In the largescale construction of urban rail transit works, the integrity of the control survey network is not so good and the new coordinate system can not match with the old one so well. The trend of the construction of urban rail transit works in China is analyzed, problems that may be encountered in the surveying of urban rail transit works are summarized, and strategies are recommended on the establishing of the ground surface control survey network of urban rail transit works. The practice shows that many problems encountered in the survey of urban rail transit works can be solved by adopting the strategies recommended.

Key words: urban rail transit works, frame control network, basic control network, strategy, ground surface control survey