Since the mill capacity limitation, many problems happened in the trial production of thin gauge container sheet such as Spec of 1.6 mm×1185 mm on a 1422 mm hot strip mill. A critical problem is that thinner middle slab as well as higher reheating temperature is needed to reduce the finishing rolling load, which resulted in surface oxide scale defect. Besides, due to lower mis(metal in stand) force for the container sheet, the mis signal of later stands usually turned on in advance, thus leading to early loop action. To solve these problems and improve the product quality, investigations were carried out and satisfactory results has been obtained by optimizing the production process including reheating temperature, descaling, logical condition of mis signal, tension coefficients, load distribution and so on.