In order to realize the photoacoustic microscopic imaging of strong scattering sample, a new method for scattering photoacoustic imaging is presented. A scattering photoacoustic detector is successfully designed by applying the scattering photoacoustic effect principle. The scattering photoacoustic detector consists of a scattering photoacoustic cavity, a resonant cavity, a microchannel and a microphone. The detector is used to detect photoacoustic signals of samples. Then, combining confocal scanning imaging technology, the photoacoustic microscopy imaging of strong scattering samples are achieved. Photoacoustic microscopic images of various kinds of scattering samples, such as silica microspheres and oral epithelial cells are successfully obtained as well. The results indicate that scattering photoacoustic imaging technique can greatly improve the image contrast and enhance image edge. This technique has important application meanings of particle diameters measurement in the field of industry and atmosphere.