A magnetic control illumination device comprises: a lighting member and a fixing base connecting with the back surface of the lighting member, the lighting member has at least one lighting component, a battery, a control circuit with a magnetic reed switch, the fixing base has at least one tenon structure and at least one powerful magnet. The magnetic control illumination device can be disposed in an umbrella, bicycle or safety helmet via buckling ring or powerful magnet, and control illumination function by means of the magnetic reed switch.