Due to the ground surface buildings, mining method has to be adopted for some section of a Metro station on Line 5 of Guangzhou Metro, for which opencut method was designed. In the paper, the construction sequence and the major construction technical measures adopted so as to ensure the safety of the buildings are presented, the differences between the changed mining method and the conventional opencut method are compared and the advantages/disadvantages of the changed mining method are summarized so as to select construction methods and construction measures more reasonably. The paper can provide reference for similar works in the future.