Nd_(11)Fe_(71)Co_8V_(1.5)Cr_1B_(7.5) magnet was prepared by melt-spinning and subsequently annealed. The effects of the wheel speed on the magnetic properties and microstructure were studied. The results reveal that fine nanocomposite microstructure consisting of Nd_2Fe_(14)B and α-Fe phases can be developed at an optimum wheel speed of about 21 m·s~(-1). After optimal annealing (640 ℃×4 min), magnetic properties of B_r=0.64 T, (()_jH_c)=903.5 kA·m~(-1) and (BH)_(max)=71 (kJ·m~(-3)) were obtained for the bonded magnets. The addition of Cr element significantly reduces grain size, increasing the intrinsic coercivity and maximum magnetic energy product. The effects of the wheel speed on the magnetic properties and microstructures were studied. The results reveal that fine nanocomposite microstructures are as follows: Nd_ (11) Fe_ (71) Co_8V_ (1.5) Cr_1B_ (7.5) of Nd_2Fe_ (14) B and α-Fe phases can be developed at an optimum wheel speed of about 21 m · s -1. After optimal annealing (640 ℃ × 4 min), the magnetic properties of B_r = 0.64 T, () _jH_c) = 903.5 kA · m -1 and (BH) _ (max) = 71 (kJ · m -3) were obtained for the bonded magnets. The addition of Cr element significantly reduces grain size, increasing the intrinsic coercivity and maximum magnetic energy product.