The invention relates to steel for a U-shaped umbrella frame and a production method thereof. The steel comprises the following components by weight percent: 0.28-0.33% of C, 0.15-0.25% of Si, 0.60-0.80% of Mn, less than or equal to 0.020% of P, less than or equal to 0.015% of S, 0.15-0.25% of Cr and 0.02-0.06% of Als. The production method comprises the following steps: injecting magnesium hot metal to desulphurize; smelting in a converter; tapping; pre-deoxidizing; blowing argon in the whole process; performing final deoxidizing; refining; smelting slag; adding ferrochrome; finely adjustingthe components of molten steel; performing calcium treatment; heating the continuous casting billet; performing high-pressure water descaling; performing rough rolling; performing finish rolling; silking; performing delay chilling on a Stelmor line; and performing air cooling until the temperature reaches the room temperature for standby. The U-shaped umbrella frame prepared from the steel has better cold workability, is easy to draw and is difficult to have work hardening; the intermediate annealing is not required for the user; and finally the finished U-shaped umbrella frame meets the userrequirement and has better plasticity.