A kind of phototherapy annulus,Include belt body,Nappe and light launcher,One end of belt body is equipped with connector,The other end is correspondingly provided with fixing piece,Connector and fixing piece, which are connected and fixed Hou, makes belt body form cyclic structure,Nappe connects what belt body,And accommodating space is formed with belt body,Light launcher is arranged in what accommodating space,To provide light source,Its with a plurality of transmitters,Light source is made of the light that those transmitters issue,The wave-length coverage of light source include visible red,Near infrared ray and far infrared,The adjustable cyclic annular structure size of the phototherapy annulus of this creation,Be suitable for neck,Arm,Waist,The different parts such as thigh and shank,And above-mentioned position is irradiated by the light source of different wave length,The effect of to reach phototherapy.一種光療環帶,包括有帶狀本體、覆蓋體以及光線發射裝置,帶狀本體之一端設有連接件,另一端對應設有固定件,連接件與固定件連接固定後使帶狀本體形成環狀結構,覆蓋體連接於帶狀本體,並與帶狀本體形成容置空間,光線發射裝置設置於容置空間內,用以提供光源,其具有複數個發射器,光源由該些發射器所發出之光線組成,光源之波長範圍包含可見紅光、近紅外線以及遠紅外線,本創作之光療環帶可調整環狀結構大小,適用於脖子、手臂、腰、大腿及小腿等不同部位,並藉由不同波長之光源照射上述部位,以達到光療之功效。