According to an embodiment, an eyelash perming method using an eye patch and an assemblable rod comprises a silicone eye patch attaching step of attaching a silicone eye patch to a user's face, with a reference line of the silicone eye patch aligned with a portion under eyelashes of the user, a first perming step of combing to straighten down the eyelashes on the silicone eye patch and performing first perming the eyelashes, an eyelash cross-supporting step of fixing an eyelash cross support, including a vertical rod and a base, to the silicone eye patch, with the eyelashes disposed therebetween, to support the first-firmed eyelashes in an upright position, a second perming step of combing to straighten the supported eyelashes and performing second perming on the eyelashes, and an eyelash cross support removing step of removing the eyelash cross support, a predetermined time after the second perming is complete.