Research conclusions :(1) Safety monitoring and forewarning management in metro construction consisted of three aspects， including safety risk identification， safety monitoring， and safety forewarning management. (2) During the safety risk identification process， potential risks related to construction schemes should be defined in the pre - construction stage， as well as the critical risk factors and their specific control solutions. Meanwhile， safety risk forewarning system should be established in the construction stage，attempting to track and monitor the safety risks in the real time. (3) With regard to the safety monitoring process，the safety monitoring scheme should be worked out in the pre - construction stage， and the key of the scheme was to determine the monitoring items. (4) For the safety forewarning management，the forewarning alert was divided into three levels，data - level，site - level and field - level， and then the warning standards and response strategies of four grades，red - grade，orange - grade，yellow - grade and green-grade，were proposed in accordance with the risk gradation. (5) The management capacity among project participants involved in safety monitoring and forewarning management in metro construction was divided into two levels， qualified and unqualified level. Once qualified， the project participant should be ordered to carry out corresponding improvement and adjustment.