A live trap for moles and a method of keeping moles in captivity are described. A field trial of the trap has given promising results and suggests that it would be a useful tool in a capture/recapture technique in field studies on moles. Multiple captures of the same animal were made; all moles caught were in good condition when released from the trap, despite confinement in it for up to 18 hours. The use of wire tunnels as exercise runs and as links between sleeping and feeding cages was found important to the success of keeping live moles. Details are given of apparatus used for continuous automatic monitoring of the activities of captive moles.