The invention relates to an automobile hand brake and a dustproof cover thereof. The automobile hand brake comprises a hand brake assembly and the dustproof cover, wherein the hand brake assembly comprises a control rod, a hand brake pull rod, a handle, a ratchet, a pawl and a base, the handle is communicated with the control rod, the handle is connected with the base through the ratchet on the control rod, the base is connected with the hand brake pull rod, and the pawl is arranged on the ratchet. The dustproof cover comprises a hand brake sleeve and a base cover, a bonding frame is arrangedon the base cover, the hand brake sleeve is provided with a through hole, and the formed through hole facilitates passing of a control button on the handle. On one hand, the automobile hand brake caneffectively control an automobile, the situation that inflexible control can be effectively avoided in the using process, the service life of the hand brake is prolonged, and labile factors are reduced; on the other hand, the hand brake handle is wrapped through the hand brake sleeve, the hand feeling of holding the hand brake handle is better, the phenomena of hand brake operating obstacles and abnormal sound produced in the running process due to object falling are completely eradicated, and meanwhile the in-automobile hygiene is improved remarkably.