The invention discloses a bevel type steel wire rope pre-deformer, which comprises a large disc, an intermediate disc, a small disc, a casing, press rolls, a machine head connecting disc, a small disc rotary shaft, a first worm gear, a first worm, an intermediate rotary shaft, a second worm gear, a second worm and a cross point. The large disc, the intermediate disc and the small disc are arranged at one end of the casing sequentially, the press rolls are arranged at two ends of the large disc, the intermediate disc and the small disc, the machine head connecting disc is arranged at the other end of the casing, the intermediate disc rotary shaft is inserted into the large disc, the small disc rotary shaft is inserted into the middle disc rotary shaft, the second worm gear is arranged at the tail end of the middle disc rotary shaft, the second worm is arranged on the casing, and the second worm meshes with the second worm gear. The tail end of the small disc rotary shaft is provided with a threaded section, the first worm gear is arranged at the threaded section, the first worm is arranged on the casing, and the first worm meshes with the first worm gear. The central axes of the press rolls on the large disc, the intermediate disc and the small disc are intersected at the cross point continuously. The strands of the steel wire rope can be bent centrally and uniformly with the bevel type steel wire rope pre-deformer.