Abstract: There appeared different peroxidase isozyme patterns with various stages of growth and development of bamboo shoots. When the apex of bamboo shoot was an active metosis, more and dark colour peroxidase isozyme occurred. As the elongation of internode of bamboo shoot, cells of top part of internode ceased to divide and intercary meristematic activity moved down to the base of the internode gradually showing a relative change on the peroxidase isozyme patterns. The peroxidase isozyme activity of the bamboo shoot apex and polyamines content decreased during an abortive process of bamboo shoots.