The utility model discloses a cable passing centralizer for an open hole well. The centralizer comprises a coupling, a casing nipple and a body which are sequentially connected from top to bottom in a threaded way, wherein the body is provided with a cable passing channel which is parallel to an axis of the body, and the centralizing body which axially, fixedly and peripherally rotates is arranged on the outer circle of the body. By adopting the structure of processing the cable passing channel on the body provided by the utility model, a liquid control pipeline or other cables can pass through the cable passing channel integrally; in addition, the centralizing body is not fixedly installed and can automatically and rotationally pass through when the wall of a well is irregular, therefore, the lowering and through capacities of a string can be improved; meanwhile, by adopting the structure of installing a spiral flowing slot in the centralizer body, the turning capacity of the centralizing body in the irregular open hole well section can be improved; a taper angle structure is arranged at the lower part of the body, so that the lower capacity of the centralizer can be improved. The cable passing centralizer provided by the utility model has few components, therefore, the integral lossless penetration of the cable can be realized, the quick and convenient field installation can be realized, and the greater practical value can be realized.