The invention discloses a light treatment bar. The light treatment bar comprises a peripheral body, a light source and a power supply module, wherein an accommodation space is formed at the peripheral body to accommodate a treated object, an inner side of the peripheral body is equipped with a light source, the light source comprises one or more OLED light sources, the OLED light sources are used for emitting irradiation light with different wavelength scopes, and the power supply module is connected with the light source and is used for providing electric energy for the light source. According to the light treatment bar, low energy consumption OLEDs are taken as the light sources, the OLED light sources are cold light sources, radiation heat is quite low, and energy consumption is small; the OLED light sources are surface light sources, an irradiation coverage area is large, uniform light emission is realized, light is soft and does not hurt eyes, harmful blue light is weak, damage to the eyes can be effectively reduced, and the light treatment bar further has functions of convenient carrying, self power supply, data transmission and multi-media playing.