The present invention relates to a method for producing ethylene and, more specifically, provides a method for producing ethylene, the method comprising the steps of: feeding a pyrolysis compression stream into a first distillation apparatus, which is selectively operated as a first deethanizer tower or a depropanizer tower; and feeding, into a second distillation apparatus, a top outlet stream from the first distillation apparatus, wherein a bottom outlet stream from the second distillation apparatus is fed into a C2 separation apparatus when the first distillation apparatus is operated as the first deethanizer tower, and the bottom outlet stream from the second distillation apparatus is fed into the C2 separation apparatus via a third distillation apparatus when the first distillation apparatus is operated as the depropanizer tower.