The invention relates to a tab slicing machine capable of automatically loading and unloading, and belongs to the field of a tab slicing machine. By using the tab slicing machine, the production efficiency of tabs is improved and the manufacturing cost of the tabs is reduced. The tab slicing machine capable of automatically loading and unloading comprises a stand, wherein a feeding device, a cutting device, a discharging device and a control device are arranged on the stand; the cutting device comprises a tab cutting component, a polar plate cutting component and a conveying device component; the tab cutting component comprises a first tab cutting tool and a second tab cutting tool; the polar plate cutting component comprises a first polar plate cutting tool, a second polar plate cutting tool and a third polar plate cutting tool; the conveying device component comprises a first belt conveyer, a second belt conveyer, a third belt conveyer and a fourth belt conveyer; the first belt conveyer is arranged between the first tab cutting tool and the first polar plate cutting tool; and the second belt conveyer is arranged between the second tab cutting tool and the first polar plate cutting tool.