The invention discloses a compound based on an azabenzene structure, wherein the compound has characteristics of high Tg, good stability, and high triplet state energy level, and the whole molecule has characteristics of good hole transporting ability, high triplet state energy level, wide energy gap, and good thermal stability. According to the present invention, with the application of the compound as the hole transporting/electron blocking material or light-emitting layer material so as to be used for OLED light-emitting device production, the good device performance can be obtained, the current efficiency, the power efficiency and the external quantum efficiency of the device are greatly improved, and the service life of the device is significantly improved.