Cold-rolling strip mill

The invention discloses a cold-rolling strip mill which comprises a rack (1), and an upper back-up roll (3), an upper working roll (5), a lower working roll (18) and a lower back-up roll (16) are sequentially arranged in the rack (1) from top to bottom. The two ends of the upper working roll (5) and the two ends of the lower working roll (18) are provided with upper working roll bearing seats (6) and lower working roll bearing seats (17) respectively, and a bending roll block seat (8) can push the upper working roll bearing seats (6) and the lower working roll bearing seats (17) to move in the horizontal direction vertical to the axis of the upper working roll (17). A horizontal moving cylinder (11) driving the bending roll block seat (8) to move is fixedly connected to the rack (1). The cold-rolling strip mill can horizontally move the upper working roll and the lower working roll in the horizontal direction according to rolling parameters and structure parameters of the strip mill, and therefore the working rollers are stressed to the minimum in the horizontal direction under the condition that the working rollers stably perform rolling.