The invention relates to an outdoor electric power distribution cabinet, in particular to a dehumidification and ventilation-type outdoor electric power distribution cabinet and aims at solving the technical problem of providing the dehumidification and ventilation-type outdoor electric power distribution cabinet which is capable of effectively removing moisture of an operating environment and is long in service life of an electronic component and is high in practicability. In order to solve the technical problem, the invention provides the dehumidification and ventilation-type outdoor electric power distribution cabinet, which comprises an electric power distribution cabinet housing, a placement table, a fixed plate, a baffle plate, a solar panel, a filter screen frame and the like, wherein the placement table is welded at the bottom in the electric power distribution cabinet housing; the fixed plate is welded at the bottom in the electric power distribution cabinet housing and is located at the lower part of the placement table; an inner cavity is formed in the fixed plate; and small holes are formed in the top of the fixed plate. According to the dehumidification and ventilation-type outdoor electric power distribution cabinet, dehumidification is carried out inside the electric power distribution cabinet by converting solar energy into electric energy and utilizing the converted electric energy as power, and resources are utilized to the maximum extent.