During the construction of Longjing tunnel on Yongwu highway, technical measures such as advance support by means of double layers of small pipes, sealing by shotcreting and rock bolting, backfilling by pumped concrete, enhanced support of tunnel body, installing cushion layers and monitoring measurement are taken for the minedout area. In the end, the tunnel passes the minedout area safely and successfully. These technical measures are presented in the paper, which can provide reference for similar works in the future.