The invention discloses a high-strength coarse-grain-ring-free aluminum alloy bar for an automotive control arm. The high-strength coarse-grain-ring-free aluminum alloy bar for the automotive control arm comprises the following components: 0.9-1.2% of Si, 0.3% of Fe, 0.15-0.2% of Cu, 0.4-0.6% of Mn, 0.7% of Mg, 0.17-0.25% of Cr, 0.15% of Zn, 0.02-0.04% of Zr and the balance of Al. By fusing, drossing, alloy preparing, refining, standing, casting, homogenizing and extruding, the finished bar is obtained finally. When the high-strength coarse-grain-ring-free aluminum alloy bar for the automotive control arm is in an extruded state, coarse grain rings do not exist, after forging and T6 heat treatment, the grain size in the center of a forge piece reaches level-one grain (inspection is carried out according to the standard of GB/T 3246.2, and the average area of the grain is smaller than or equal to 0.026 mm<2>), a coarse grain ring on the outer ring of the force piece is smaller than 2 mm, after forging and heat treatment, grains cannot be expanded easily, the mechanical property of a material can be as follows: the tensile strength is greater than or equal to 385 Mpa, the specified non-proportional extension strength is greater than or equal to 365 Mpa, and the elongation A is greater than or equal to 11%. Requirements on strength of a high-end automotive aluminum alloy steering control arm material are met.