This research was accomplished in order to study the effect of rod containing paraffin on the permanent wave formation of hair. Rod has protuberances at its both sides and has also a vacant place at center part. The vacant place was filled with paraffin and sealed up. MobileCorder was used to measure the surface temperature of rod. The results are as follows. First, attaching each temperature sensor on aluminum rod no.12, silicone rod no.12, paraffin rod no.12, jade rod no.12. and put them in cell perm that set on 120oC. When the temperature of rod attained 100oC, the rod was taken out. And the sample hair spreaded with reducing solution was wound on the surface of rods on which temperature sensor is attached. Then, the surface temperature of rod was measured through senser. Among them, the surface temperature of paraffin rod was maintained highly for long time. Second, the wave formation ability of silicone rod, paraffin rod, jade rod was checked by means of measuring the length of waved hair. In case of paraffin rod, the wave formation ability was most excellent.