The utility model discloses an electrified long -pending dirty test device of 110kV suspension insulator, the jar body, fog production device, solid particle including being provided with roof and bottom plate from top to bottom respectively produce device, monitoring instrument and experimental power, the jar body passes through the external fog of fog passageway and produces the device, and the jar is personally experienced sth. Part of the body through the external solid particle of solid particle passageway production device, the solid particle passageway penetrates tank connection and sets up in the annular pipe of the internal portion of jar, jar the body is still external has monitoring instrument and an air -blower, the utility model discloses a principle lies in through reasonable space layout, forms comparatively stable environment in amassing the dirty jar of body, satisfies electrical insulation and field distribution's requirement simultaneously. The utility model discloses applicable electrification in the following suspension insulator of 110kV electric pressure is long -pending dirty experimental.