Abstract:This paper reports an integrated photoacoustic breast imaging system. Matching the optical fiber bundles with flexible transducer, an integrated photoacoustic excitationcouplingdetection system is formed, so compared with the traditional photoacoustic imaging system, the proposed system has the advantages of morphological adaptability, and can realize the photoacoustic imaging with large field of view. The imaging capability of the system has been investigated by sample and breast tumor imaging in vitro experiments, demonstrating the potential of this system for largescale clinical breast cancer screening.