The utility model provides a centralizer device bends partially, the centralizer comprises a centralizer body, the both ends of centralizer body all are equipped with the retaining ring, the centralizer body is hollow structure a plurality of brace rods along circumference evenly distributed, and it is gapped between two adjacent brace rods, the brace rod is asymmetric inclined to one side bow structure, and arranges bow -shaped partial the staggering of two adjacent asymmetric inclined to one side bow structures. Bending strutting arrangement partially through giving traditional centralizer increase, reducing the welding point, adopt monolithic structure, make this centralizer have higher sleeve pipe and right the effect, great annular space flow surface is long -pending, can effectivelyimprove circulation drilling fluid displacement efficiency, when sleeve pipe entering inclined shaft section or horizontal segment, can make the sleeve pipe body not hug closely the base of well, rights effectually, and friction area reduces to reduce the coefficient of friction resistance between the sleeve pipe and the wall of a well, the frictional resistance that has significantly reduced makes the sleeve pipe go into the well smoothly.