Platinum (Pt) crystalline fibers were grown from the melt by the micro-pulling-down (mu-PD) method using the ZrO2 ceramics crucible. The diameter of the grown Pt fiber was controlled by the phi 1 mm outlet made at the bottom of the crucible and the Pt fiber of 0.95 +/- 0.03 mm in diameter and over 5 m in length was obtained at 10 mm/min pulling-down rate. In addition, the Pt fiber was grown at 1-110 mm/min pulling rates while the liquid-solid interface reached the bottom of the crucible and the crystal growth became unstable at 120 mm/min pulling rate. Few grain boundaries were observed in the scanning electron microscopy image of the Pt fibers and there were some spots with high intensity in the pole figures.