Abstract: A box-like housing has defining sides and a top wall all arranged to provide protection for an excavation worker in the housing from cave-ins of the walls of the excavation. The bottom of the housing is open and such housing has downwardly extending legs arranged to support it a spaced distance off the bottom of an excavation to allow the worker to dig out beyond the sides of the housing. Each of the legs has a ground engaging member to support the housing on the bottom of an excavation and an extension arranged to pierce the ground and anchor the housing against lateral movement. The housing has a lift connection for a powered lifting device on an upper portion thereof. Multiple doorways are provided with safety chains to hold them shut in the event of a cave-in. A seat for supporting a worker when the cage is being moved is suspended in the housing.