PROBLEM TO BE SOLVED: To provide an inexpensive and simple device for automatically sterilizing and sterilizing a sterilization target member without human hands, and to provide a sterilizing device in consideration of safety to a human body. SOLUTION: This is an ultraviolet sterilization device that irradiates a member to be sterilized with ultraviolet light to sterilize, and an LED ultraviolet light source that emits ultraviolet light for sterilization, and a person approaching the ultraviolet sterilization device. A detector that generates a signal according to the separation and a control unit that controls turning on/off of the ultraviolet light source are provided, and the control unit controls the ultraviolet light source according to the output of the detector. [Selection diagram] Figure 1【課題】人の手を介さず除菌対象部材を自動的に滅菌・除菌する安価で簡単に使用できる装置であるとともに人体への安全性を考慮した除菌装置を提供すること。【解決手段】除菌対象部材に紫外線を照射して除菌を行う紫外線除菌装置であって、除菌用の紫外線を発生するLED紫外線光源と、前記紫外線除菌装置への人の接近・離隔に伴い信号を発生する検出器と、前記紫外線光源の点灯・消灯を制御する制御部と、を備え、前記検出器の出力に応じて前記制御部により前記紫外線光源を制御する。【選択図】図1