The invention provides a steel bar distributing device which comprises a feeding bin supporting a straightening steel bar, a conveying device transferring the steel bar, and a discharge bin outputting the steel bar to a steel bar mesh forming main machine, wherein a trimming air cylinder and trimming plate are arranged at the end of the feeding bin; a material distribution device comprising a material distribution air cylinder, a material distribution plate and a swing axle is arranged below the feeding bin; an output end of the material distribution air cylinder is connected with the swing axle; the swing axle rotates to drive the material distribution plate to swing; a first storage device and a second storage device are arranged on the two sides below the material distribution plate; a third storage device is further arranged below the first storage device; the first storage device, the second storage device and the third storage device are equipped with steel bar transverse pushing devices; and the conveying device comprises a transfer chain uniformly provided with material stopping plates. Through multilevel delivery, and after the steel bars are pushed transversely, the distributing device can realize automatic distribution of the multiple transverse bars in the same transverse bar position.