The present application relates to a cable having a high water resistance effect. The cable includes an outer sheath (7), the outer sheath (7) is of a regular pentagonal cross section structure, a first conductor (10) penetrates the inside of the outer sheath (7), the outer side of the first conductor (10) is uniformly surrounded by multiple second conductors (8); the outer sides of the first conductor (10) and the second conductors (8) are sleeved with insulating layers (11); the outer side of the insulating layer (11) is sheathed with polyester fibers (12), and a filling material (9) is arranged between the polyester fibers (12) and a shielding layer (13) . The polyester fibers (12) are water-absorbing antistatic polyester fibers, and the polyester fibers are obtained by blending a polyester master batch body and a polyester chip and performing melt spinning; the polyester master batch body is obtained by blending the water-absorbing composite powder and the polyester chip through atwin-screw extruder; moreover, the water-absorbent composite powder is obtained by vacuum dehydration of a mixture containing sodium polyacrylate and carbon nanotubes.