This paper proposes an innovative output coupling method for all-PM figure-8 femtosecond fiber laser. In the unidirectional loop of a figure-8 fiber laser, a polarization beam splitter and a Farady rotator is used to extract the laser pulses from the rejection port. The wasted pulse energy produced by traditional figure-8 fiber laser can be saved. An average power of 23 mW is obtained from the fiber laser oscillator with a repetition rate of 112 MHz, which is the highest output power ever recorded through the use of NOLM/NALM mode-locked fiber laser.