To provide a band made of a plastic spring that hardly nips hair or fabric and has decorativeness.

An extrusion-molded plastic wire rod is flatly coiled to prepare a spring and the spring is jointed at its both ends in a ring to form a plastic spring band. This plastic spring band is produced by winding the extruded plastic wire rod 1 around a jig comprising three rods 21, 22, 23 arranged in parallel, heating the plastic wire rod wound and fixed around the jig, then cooling thereby removing the inner stress of the plastic wire rod, and pulling out the center rod 22 from the jig 2 followed by removing out the remaining two rods 21 and 23.