The invention relates to an outdoor intelligent cabinet, in particular to an outdoor intelligent cabinet multifunctional curtain board device applied in an intelligent substation. The device comprises a support (1), wherein the support (1) is connected with a curtain board (2) through an electric turn-over mechanism (3), a solar cell panel (4) is installed on one face of the curtain board (2) and connected with a storage battery (7) in the outdoor intelligent cabinet for supplying power, a temperature and humidity sensor (5) and a controller (6) are further arranged on the portion, on the same side of the solar cell panel, of the curtain board (2), the electric turn-over mechanism (3) is connected to the storage battery (7) through the controller (6), and a binding post of the temperature and humidity sensor (5) is connected to a sensory control binding post of the controller (6). Due to the outdoor intelligent cabinet multifunctional curtain board device applied in the intelligent substation, sunlight can not directly irradiate the outdoor intelligent cabinet, the temperature of the outdoor intelligent cabinet is greatly lowered, and daily operation of maintaining devices in the cabinet is maintained through solar power supply. According to the outdoor intelligent cabinet multifunctional curtain board device applied in the intelligent substation, no air conditioner needs to be additionally installed, no extra power supply is needed, operation cost is reduced, effective handling can also be performed in rain and snow weather, and the outdoor intelligent cabinet multifunctional curtain board device applied in the intelligent substation is economical, practical and suitable for wide-range application and popularization in electric power systems.