An electronic device is provided here, which includes a casing, a keycap and a keyboard backlight module. The casing has a first opening. The keycap is disposed corresponding to the first opening, and a gap is formed between the keycap and a periphery of the first opening. The keyboard backlight module includes a shielding layer, the shielding layer includes a light transmission area corresponding to the first opening and a light block portion, and the light block portion is located in the light transmission area and covers a region where at least one light path passes through the gap and intersects the light transmission area through.