The invention discloses a polygonal stator iron core and a motor comprising the polygonal stator iron core. According to the polygonal stator iron core, multiple teeth are annularly arranged in the internal circumferential surface of the stator iron core. A winding slot is formed between every two adjacent teeth. The shape of the stator iron core is a polygon. Every two yoke parts of the stator iron core are connected via a connecting part. The winding slots comprise multiple first winding slots and multiple second winding slots. The first winding slots and the second winding slots are different in shape. The area ratio of the first winding slots to the second winding slots is greater than and equal to 0.9 and less than and equal to 1.1. The motor comprises the polygonal stator iron core. The shape of the stator iron core sheet is changed so that the volume of the stator iron core is increased in the effective space of the motor. Meanwhile, the shapes of the winding slots are arranged to be different shapes, and area is ensured to be similar with difference of being within 10% so that area utilization rate can be effectively enhanced and output power can be increased.