The invention discloses an intelligent spile power-off method for protecting household activity pets. The intelligent spile power-off method comprises the following steps: acquiring image information of biology in a target area; judging the numbers of both people and pets in the biology in the target area according to the image information of the biology in the target area; judging the danger level of the pets in the target area according to the numbers of both people and the pets in the biology in the target area, wherein the danger level includes a first level and a second level; and powering off a spile in the target area when the danger level of the pets in the target area is the first level; and sending warning information when the danger level of the pets in the target area is the second level.