A hairpin to press and hold hairs in place which includes upper and lower clips (10 and 20) each having finger pressing portions (11 and 21) and clipping portions (12 and 22); a hinge shaft (35) inserted in holes (13 and 23) formed in the upper and lower clips (10 and 2); a torsion spring (30) through which the hinge shaft (35) passes, in which hairs are pressed and held in place by tension force of the clipping portions (12 and 22) of the upper and lower clips. The clipping portion (12) of the upper clip (10) has a convex holding portion (15) protruding outwardly from an inner center of the clipping portion to form a space (16) for retaining hairs. A resiliently pressing portion (18) integrally extends from the clipping portion below the convex holding portion (15) to press and hold the hairs in place.