The present invention is related to a light-emitting keyboard, comprising: a light guide having a light entrance surface, a bottom surface and a light exit surface; a light source provided adjacent to the light entrance surface of the light guide; a first reflector disposed underneath the bottom surface of the light guide to reflect the light originated from the light source to enter into said light guide; a second reflector disposed on top of said light exit surface of the light guide; a membrane circuit board disposed on top of said second reflector, said membrane circuit board being provided with an elastic member; a supporting plate disposed on top of the membrane circuit board; a scissor assembly engaged with said supporting plate and provided thereon; and a keycap supported by said scissor assembly.