According to an embodiment, an eyelash perming method using an eye patch and an assemblable rod includes 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-permed 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, at a predetermined time after the second perming is complete.