A lighting keyboard includes a keyboard unit, and a combined circuit and lighting unit. The keyboard unit has a keyboard base, press keys mounted on the keyboard base, and an elastic layer disposed between the press keys and the keyboard base, and having elastic members disposed beneath the press keys. The combined circuit and lighting unit includes a membrane circuit substrate underlying the keyboard base, a first light-blocking layer disposed on top of the membrane circuit substrate, a first reflecting layer underlying the membrane circuit substrate, a backlighting module, and a second light-blocking layer. The backlighting module underlies the first reflecting layer, and cooperates with the first light-blocking layer, the membrane circuit substrate, and the first reflecting layer to define a light passage. The second light-blocking layer underlies the backlighting module. Light generated from the backlighting module is transmitted toward the press keys through the light passage.