The application of glued bamboo in construction and civil engineering as a typical green construction material has attracted wide attention and the condition monitoring for the glued bamboo structures is important for engineering application. In this paper, a glued bamboo beam specimen is tested and the condition monitoring for the specimen under different loading levels is carried out using the wave measurement with piezoelectric ceramic patches. By investigating the variation in the measurement signal amplitude under the sinusoidal excitation and the wavelet packet energy under the sweep frequency excitation, the damage condition of the specimen is monitored with defined damage index. The results show that the damage condition can be detected effectively based on the wave measurement with piezoelectric patches.