Tool special for measuring wiring board hole pitch

The invention discloses a tool for special for measuring a wiring board hole pitch. The tool for special for measuring the wiring board hole pitch structurally comprises a handle and a measuring head installed at one end of the handle, wherein the measuring head comprises two transverse verniers and one longitudinal vernier, each transverse verniers include a fixed transverse vernier and an extensible vernier, and the longitudinal vernier is an extensible vernier. A pitch measuring window and a liquid crystal display screen are further arranged on the measuring head. Infrared transmitters are arranged at the top ends of the transverse verniers and the longitudinal vernier. The tool can simultaneously achieve accurate size and hole pitch measurement of a wiring board, a butterfly valve, a flange plate and the like, and can perform remote infrared pitch measurement and achieve non-contact measurement through automatic leveling. Measurement information is digitally displayed and automatically read and is intuitive and accurate, and the extensible verniers can meet the measurement requirements for different sizes.