The present invention relates to a hair curling iron having multiple functions, and more specifically, to a hair curling iron having multiple functions, in which a variety of hairstyles can be set by one single curling iron. The hair curling iron of the present invention comprises: a first body (11) and a second body (12) having end portions thereof connected to each other to be able to turn respectively at a preset angle from a hinge (13); and a body portion (10) having heating planes (14) facing respectively the other sides of the first body (11) and the second body (12). A heating arc-shaped plane (15) having a semicircular shape to be able to emit heat is disposed at each outer side of the heating plane (14) such that two heating arc-shaped planes (15) make a right circular cylinder or an elliptical cylinder when the heating planes (14) come in contact with each other, and finger grip portions (16) is disposed respectively on the end portion of the other side of each heating plane (14) and each heating arc-shaped plane (15) of the first body (11) and the second body (12) without emitting heat.
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