A laser lighting device includes a cap body, a plurality of laser modules, and a flexible circuit board. The cap body can be made into a variety of different sizes. The laser modules are arranged on a flexible circuit board, and the flexible circuit board can It is detachably arranged on the inner surface of the cap body by means of magnetic attraction, buckle or hook-and-loop fastener. The flexible circuit board has a driving circuit that can drive these laser modules to irradiate the user's head. Stimulates hair follicles and produces hair growth effects. Therefore, the cap bodies of different sizes can be conveniently changed, so as to be suitable for users with different head circumferences.一種雷射光照裝置，包括一帽體、多個雷射模組及一軟性電路板，帽體可製成多種不同的尺寸，該些雷射模組設置於軟性電路板上，軟性電路板能以磁吸、卡扣或黏扣帶等方式可拆卸的設置於帽體的內表面，軟性電路板具有驅動電路，能驅動該些雷射模組，用以照射於使用者的頭部，藉以刺激毛囊，產生毛髮增生的效果。由此，能方便換不同尺寸的帽體，以便適用於不同頭圍的使用者。
