Full hard hot dip galvanized steel plate with high strength and good surface quality and production method thereof

The invention provides a full hard hot dip galvanized steel plate with high strength and good surface quality, which comprises the following chemical compositions: 0.02 to 0.15 percent of C, 0.15 to 1.50 percent of Mn, 0.05 percent of Si, 0.02 to 0.10 percent of Ti and/or Nb, and the balance of iron and inevitable impurities. A production method comprises processes of smelting, casting, rolling and hot dipping, and is characterized in that: 1) in the smelting process, the content of each alloy element is precisely controlled; 2) in the rolling process, the heating temperature during the hot rolling is between 1,150 and 1,260DEG C, the finish rolling temperature is between 850 and 1,100DEG C, laminar flow after the rolling is quickly concentrated and cooled, the coiling temperature is between 550 and 700DEG C, and the cold rolled reduction ratio is controlled between 60 and 80 percent; and 3) in the hot dipping process, the continuous annealing temperature is controlled between 600 and710DEG C. The production