In this paper, a set of imaging plate powder diffraction equipment for synchrotron radiation is reported. The curved image plate has a radius of 143.3 mm with maximum detection angle (2θ) of 160°. The error sources in the measurement with the equipment are discussed in detail. The maximum error of 2θ is less than 0.03θ. The results demonstrate that this equipment satisfies the experimental requirements and can be used in the powder diffraction experiments.