The present invention relates to a method for purifying a non-spreading botulinum toxin that causes local muscle paralysis and a non-spreading botulinum toxin obtained thereby. The method comprises the steps of: subjecting a purified botulinum toxin type A product to ion-exchange chromatography using a controlled pH of buffer, concentration of sodium chloride (NaCl), thereby separating the botulinum toxin type A product into subfractions； and collecting a subfraction having an A260/A280 value in a specific range from the separated subfractions.
