High repetition frequency fiber laser plays an important role in the optical frequency comb, industrial processing, ultra-high speed optical sampling and other fields due to its advantages of good beam quality, low power consumption, and high integration. A 163 MHz fundamental repetition rate soliton mode-locked fiber femtosecond laser oscillator is designed and constructed based on nonlinear polarization rotation (NPR) technique. The laser can produce a maximum power of 200 mW at a pump power of 450 mW, with a 30 nm bandwidth and a 786 fs output pulse width duration. By further analyzing the relationship between the pumping power and the output power, it is found that the best operation condition for the laser is at 400～450 mW for the pump power. At the same times, the laser can realize self-starting mode-locking. The proposed laser is of great potential in the application fields like precision spectroscopy and astronomical exploration because of its compact optical frequency comb, high image quality and high imaging speed.