University, Guangzhou, Guangdong 510006, China Abstract A new dual-mode imaging method of all-optical non-contact photoacoustic tomography (ncPAT) imaging and optical coherence tomography (OCT) is presented to get absorption and scattering of sample simultaneously. An all-optical ncPAT-OCT dual-model imaging system is built. The same probe light and the same interferometer system are used to improve the stability of system. Synchronous trigger mode is utilized to ensure the data acquisition at the same time, and a common sample arm is employed to ensure the sampling region in the same space. On the basis of these, the images of PAT and OCT are achieved at the same time for the same sample. Experimental results show that the two-mode imaging can be a good match, and it can get different information in different modes.