Find the place where moles move and dig a hole (the soil is relatively soft, and the slightly arched place is usually the passage where moles often hang out).
Place the installed mole trap in the dug hole. Place a mole trap wherever moles are active, creating a path where a mole trap can be found when the mole passes by. Cover the mole trap with soil to provide cover, and then wait for the mole to take the bait. Moles usually come out at night, so please be patient after placing the mole trap.