The invention discloses a bainitic steel wheel for rail traffic with capability of resisting against damp, hot and corrosive environments and a manufacturing method thereof. The bainitic steel wheel comprises the following chemical components: 0.05-0.40% of C, 0.40-1.50% of Ni, 0.25-1.50% of Cr, 0.70-2.10% of Mn, 0.20-1.00% of Si, 0.01-1.00% of W, 0.05-0.60% of Mo, 0.01-0.80% of Cu, 0.01-0.20% ofV, 0.001-0.20% of Nb, 0.0001-0.0350% of B, 0.001-0.040% of RE, less than or equal to 0.020% of P, less than or equal to 0.020% of S and the balance of Fe and inevitable residual elements, wherein Mn+Cr is more than or equal to 2.0% but less than or equal to 3.0%. The new alloy design system of C-Ni-Mn-Cr-Mo-Cu and alloying principle are adopted by the invention; after a wheel is formed, a rim after advanced thermal treatment is endowed with a carbide-free bainite structure; the wheel has excellent comprehensive mechanical property and service performance, especially, atmospheric corrosion resistance; the wheel is capable of resisting against damp, hot and corrosive environments and reducing the harmful influences of stress corrosion and medium corrosion; the service life and running safetyof the wheel can be further promoted.