The “International Symposium on Surface Topography & Optical Microscopy, 2015” (IS2TOM 2015) symposium is aiming to provide an international forum for the presentation and discussion of recent advances and applications in Optical Microscopy. The aspects of optical stereo imaging，biomedical optical imaging，super-resolution imaging, and other related researches are within the scopes of the symposium. The symposium will be held on July 23-25, 2015 in Harbin, China. This symposium is sponsored by Chinese Society for Optical Engineering (China), Harbin Institute of Technology (China), and SPIE (USA) is the technical sponsor.