An optical disk player includes a main body, a disk tray, and a cover. The main body includes a top surface with a receiving recess defined thereon. The disk tray is received in the receiving recess for reading data written on an optical disk. The cover is configured for covering the receiving recess of the main body. A ring-shaped groove is formed on the top surface of the main body surrounding the receiving recess, and a protrusion is formed on an inner surface of the cover facing the main body, the protrusion is capable of being inserted into the groove when the cover is closed on the top surface of the main body.