The ultrastructure of the compound starch granules and the protein bodies of Odaebyeo rice of early matured variety were examined by ligth microscope and electron microscope. The endosperm cell appeared rectangular or octangular shape on the cross section. The thickness of cell wall containing of membraneous materials was about 0.5 ㎛ in diameter. The starch cell was filled compactly with globular or oval shaped compound starch granules with the size of 20∼25 ㎛ in diameter. The compound starch granules were consisted of central core starch granule and concentrical 2∼3 layers of starch granules. The average thickness of the starch granules were about 5 ㎛. Most protein bodies were found in the aleurone layer. The globular protein bodies were scattered near the compound starch granules and 2.5∼3 ㎛ in diameter. The protein bodies composed of central electron dense materials and peripheral electron loose materials in limiting membrane.