Swept source optical coherence tomography (SSOCT) technique has recently become the hot topic of investigation because of its speed and sensitivity advantage over traditional time domain optical coherence tomography (TDOCT). Based on one dimensional scanning fiber cantilever probe, a SSOCT system is developed. The probe exploits resonance of a fiber cantilever which is excited by one piece of piezoelectric bimorph through a driving signal whose frequency is near the resonant frequency of the fiber cantilever. To achieve a high system axial resolution, the interference spectrum calibration in wave number domain is necessary. We report a calibration method based on Mach-Zender interferometer (MZI), and the system axial resolution achieves 8.3 μm. Based on the fiber cantilever probe, at 20 kHz A-Scan rate, the SSOCT system can get OCT images of sample at a frame rate of 20 frame/s, the lateral range of 1 mm, and the lateral resolution of 10 μm. Some preliminary imaging results presented in the paper demonstrate the feasibility of the scheme.