The utility model provides an E2 vertical roll of a strip rolling mill. The E2 vertical roll is characterized in that a first oblique plane, a second oblique plane and a third oblique plane are sequentially arranged at the bottom of a slot of the vertical roll from a non-transmission end to a transmission end; a central axis portion, which corresponds to the first oblique plane, of the vertical roll has a length of L1; a central axis portion, which corresponds to the second oblique plane, of the vertical roll has a length of L2; a central axis portion, which corresponds to the third oblique plane, of the vertical roll has a length of L3; the L1 is larger than a value h, and the value h is the maximum value of the thicknesses of workpieces which are rolled by a second framework for the last second pass in a rough rolling mode; the sum of the L1 and the L2 is smaller than a value h', and the value h' is the maximum value of the thicknesses of workpieces which are rolled by the second framework for first pass in a 3+3 mode or the maximum value of the thicknesses of workpieces which are rolled by the second framework for second pass in a 1+5 mode; the sum of the L1, the L2 and the L3 is larger than a value H, and the value H is equal to the thickness of a plate blank before the plate blank is rolled by the second framework for the first pass in a 1+5 rough rolling mode. The E2 vertical roll has the advantages that hole patterns of the vertical roll are changed, and accordingly the shortcoming of 'fine lines' or 'peeling' in follow-up rolling steps can be overcome.