The invention discloses a construction method for maintaining a winze by utilization of a raise-boring machine. The construction method comprises the following steps that (1) structural detection is conducted on the space of an original winze shaft; (2) filling of an original winze shaft is conducted according to detection results obtained in the step (1); (3) the filled original winze shaft in the step (2) is subjected to raise boring for forming a new winze shaft by utilization of the raise-boring machine; and (4) the wall of the new winze shaft obtained in the step (3) in a drilled mode is supported. According to the construction method, staff does not need to go down into the winze for major procedures; when the winze wall is supported, surrounding rock is already controlled; and not only is the performance of the winze not damaged when the raise-boring machine is used for drilling concrete, but also the personal safety of the staff is guaranteed.