The invention discloses a pre-twisted contact network terminal number plate device which comprises a contact network terminal number plate and a number plate frame. An upper V-shaped supporting plate is connected to the upper end of the number plate frame, a pre-twisted auxiliary rope is connected to the upper end of the upper V-shaped supporting plate and is wound with a bearing rope, the bearing rope is wound around a pre-twisted armor rod, the lower end of the number plate frame is connected with a double wire clamp fixing support, and the double wire clamp fixing support is connected with a contact line through a contact line hanging string line clamp. The problems of suspending stability and durability of contact network terminal identifiers of electrical high speed railways and common speed railways in wind damage, snow damage and other severe climatic regions are solved.