An outdoor insect killing device, comprising a light emitting lamp (5), a housing (1), and a light transmitting cylinder (14). The light emitting lamp (5) is inserted in the light transmitting cylinder (14). The housing (1) comprises a waterproof cover (11), a prevention fence (13), and a base (12) which are connected in sequence from top to bottom. The light emitting lamp (5) and the light transmitting cylinder (14) are mounted on the waterproof cover (11) and inserted in the prevention fence (13). The light emitting lamp (5) and the light transmitting cylinder (14) are located above the base (12). The prevention fence (13) is used for protecting the light emitting lamp (5), and allows light to pass through and insects to fly towards the light emitting lamp (5) through the prevention fence (13). The waterproof cover (11) is detachably connected to the prevention fence (13), and/or the prevention fence (13) is detachably mounted on the base (12). The base (12) is used for facilitating moving of the outdoor insect killing device. The light emitting lamp (5) of the outdoor insect killing device is protected by the light transmitting cylinder (14) and the prevention fence (13), and thus light can be effectively transmitted, light transmission loss can be avoided, and the mosquito killing effect can be improved.Linvention concerne un dispositif extérieur dextermination dinsectes, comprenant une lampe émettant de la lumière (5), un boîtier (1) et un cylindre de transmission de lumière (14). La lampe émettant de la lumière (5) est insérée dans le cylindre de transmission de lumière (14). Le boîtier (1) comprend un couvercle étanche à leau (11), une grille de protection (13) et un socle (12) qui sont reliés à la suite lun de lautre de haut en bas. La lampe émettant de la lumière (5) et le cylindre de transmission de lumière (14) sont montés sur le couvercle étanche à leau (11) et insérés dans la grille de protection (13). La lampe émettant de la lumière (5) et le cylindre
