The invention relates to a cable protective sleeve used for families, offices and engineering and a lead clamp thereof. The lead clamp belongs to an auxiliary component and the cable protective sleeve belongs to a main component; the cable protective sleeve is made of a plastic sheet coil pipe, the longitudinal edges of two sides of the plastic sheet coil pipe are superimposed from inside to outside so as to form a cylinder; horizontal I-shaped groove holes are uniformly distributed on the cylinder wall, and the length of the horizontal I-shaped groove holes is 2/3 to 4/5 of the width of a plastic sheet; the lead clamp consists of a pair of plastic clamping pieces and an elastic fastener which can clamp the clamping pieces; the upper parts of the clamping pieces are respectively provided with a lead shuttle end, and the middle parts are respectively provided with a binding wire hole; a pivoted device is arranged below the binding wire hole; and a handle is arranged at the lower part of the pivoted device. The cable protective sleeve has the advantages of adopting environment-friendly and regenerative material, having elegant and beautiful appearance, being suitable for indoor and outdoor to use, having simple structure and various specifications and being capable of effectively protecting the cable.