Based on clearing and staining method, morphological characteristics of the early skeleton development in relation to their feeding habit were observed in Miichthys miiuy larvae. Ossification started upon the 4th day after hatching at 3.0 mm BL (body length). Hyoid arch elements were cartilaginous in 3.0 mm BL and became ossified in 7.8 mm BL, whereas interhyal retained cartilaginous condition. Also Branchial arches were cartilaginous in 3.0 mm BL and then ossified gradually. In suspensorium, not only hyomandibular, symplectic, palatine and pterygoid were earlier occurred cartilaginous than quadrate, metapterygoid and endopterygoid but also ossified early. Opercular apparatus, jaws showed a different developmental style. They started from fibrous to full ossified bone. Up to the 34th day (7.8 mm BL), most of skeleton elements became fully ossified besides quadrate, metapterygoid and endopterygoid. These results showed that the osteological development had completed in the early stage of Miichthys miiuy. The short period of ossification process showed that it had the ability to early feeding.