500 MPa grade mining anchor rod steel suitable for deep processing and production method

The invention belongs to the technical field of steel production, and particularly relates to deep-processed 500MPa-grade mining anchor rod steel and a production method thereof.The deep-processed 500MPa-grade mining anchor rod steel is prepared from, by mass, 0.19%-0.23% of C, 1.45%-1.53% of Mn, 0.40%-0.50% of Si, smaller than or equal to 0.035% of P, smaller than or equal to 0.035% of S, 0.06%-0.07% of V, 120 ppm to 180 ppm of N and the balance Fe. The production method comprises the following steps: adding the raw materials into molten steel in percentage by weight, smelting in a converter, refining by blowing argon from the bottom of a steel ladle and refining in an LF furnace to prepare qualified molten steel, casting the molten steel through a continuous casting process to form a casting blank, and rolling the casting blank through a rolling process to prepare the anchor rod reinforcing steel bar with qualified performance. C in the steel is controlled to be 0.19-0.23%, V in the steel is controlled to b