The utility model relates to a device for a data collecting and safety function monitoring system of a PWR (Pressurized Water Reactor) nuclear power plant, wherein, the device is communicated with a KIT/KPS system of the nuclear power plant. The device comprises a KPS safety function key group, a picture calling key group, a function calling key group and an operation key group, wherein, the KPS safety function key group is used for acquiring the safe operation state relative to the KIT/KPS system; the picture calling key group is used for calling operation state pictures relative to the KIT/KPS system; the function calling key group is used for setting, checking and calling basic working parameters relative to the KIT/KPS system; the operation key group is used for calling auxiliary working parameters relative to the KIT/KPS system; and the KPS safety function key group, the picture calling key group, the function calling key group and the operation key group correspond to operation interface keys. A keyboard provided by the device can replace a mouse basically, so that paging and various function operations of the KIT/KPS system can still be completed when the mouse is unusable.