The invention discloses a double-row photo-electricity slitting machine which comprises an upper row slitting set, a lower row slitting set and a slitting mechanism. The upper row slitting set comprises an upper row unrolling mechanism and an upper row rolling mechanism. The lower row slitting set comprises a lower row unrolling mechanism and a lower row rolling mechanism. The slitting mechanism comprises a round rotating cutter. The upper row slitting set and the lower row slitting set share the same round rotating cutter. The slitting mechanism further comprises an upper row pressing rollerand a lower row pressing roller. The upper row pressing roller and the lower row pressing roller each comprise two parts distributed on the two sides of the round rotating cutter. The upper row pressing roller and the lower row pressing roller are symmetrical about the axis of the round rotating cutter. The distance between the axis of the upper row pressing roller and the axis of the round rotating cutter is smaller than the sum of the radius of the upper row pressing roller and the radius of the round rotating cutter. According to the machine, the overall occupied space is unchanged, the slitting treatment amount is two times of the original amount, and the utilization rate is high.