Abstract: The growth and development rhythm of Qiongzhuea tumidinoda were studied.The main results were as follows:①the period of bamboo shoot coming up out of soil was about 60 d and the prosperous stage appeared from the beginning to the middle in April;②growth in height shown Logistic equation and went on about 50 d,the growth rhythm was obviously different between day and night; ③growth in base diameter lasts 15 d;④growth increment in height was affected mainly by temperature.