The invention discloses a novel dustproof linear sliding table which comprises a track base mechanism, a transmission mechanism, a dustproof belt and a sliding table base mechanism. The track base mechanism comprises a base, a magnetic element installation component and a magnetic element. The magnetic element installation component is installed on the upper surfaces of the two sides of the base. A groove is formed in the upper surface of the magnetic element installation component. The magnetic element is arranged inside the groove. The transmission mechanism comprises a synchronous belt, a synchronous belt pressing block and a locking synchronous belt, wherein the synchronous belt pressing block is arranged at the upper portion of the joint of the synchronous belt, the locking synchronous belt is reversely buckled to the lower portion of the joint of the synchronous belt, and the synchronous belt, the synchronous belt pressing block and the locking synchronous belt are fastened and connected through bolts. The transmission mechanism is installed on the base. The sliding table base mechanism comprises a sliding block and an upper cover mechanism buckled on the sliding block. The sliding block is fixed to the synchronous belt. A dustproof belt is arranged on the surface of the base and covers the magnetic element. The dustproof belt penetrates through the upper cover mechanism and the sliding block and is arranged between the upper cover mechanism and the sliding block. The sliding table is simple in structure and better in dustproof effect and greatly prolongs the product using service cycle.