Abstract: The kinetic changes of cell wall components between brittleness mutation (BM) rice [Obtained by gamma-ray (γ) treatment] for seeds and its wild type from japonica variety Zhonghua-11 was investigated. 1) BM-rice stem and leaves had brittle and fragile characters in all growth stages. 2) For wild type rice, cellulose content increased during vegetative growth, and then decreased during reproductive growth. Hemi-cellulose content was not changed significantly in the forward process, but decreased drastically in the backward process. For BM-rice, cellulose content was increased gradually over the whole life of the plant. Hemi-cellulose content showed a decreasing trend, but this was not significant between the growth stages. 3) At the tillering stage, the cellulose content of BM-rice stem, leaf and sheath significantly decreased (P<0.01) by 34.69%, 25.89% and 28.85%, respectively compared with that of wild type but the corresponding hemi-cellulose content significantly increased (P<0.01) by 15.77%, 31.31% and 19.32%, respectively. At the heading stage, the cellulose content of BM-rice stem, leaf and sheath significantly decreased (P<0.01) by 32.31%, 32.25% and 34.69%, respectively and the hemi-cellulose content significantly decreased (P<0.01) by 25.39%, 32.78% and 20.91%, respectively. At maturation, BM-rice and CK-rice cellulose content were not significantly (P>0.05) different, but hemi-cellulose contents of BM-rice stem, leaf and sheath were significantly higher than those of the CK-rice. Above all, BM-rice has a potential advantage for utilization as a fodder-rice.