The demonstration of a laser diode (LD)-pumped continuous-wave (CW) mode-locked Yb,NaCaF2 laser is presented. By employing a semiconductor saturable absorber mirror (SESAM) for initiating the passively mode locking and a pair of SF10 prisms for the dispersive compensation, a pulse series with a duration of 406 fs and a repetition frequency of 94.8 MHz is obtained. With 1% output coupler, the maximum of average output power centered at 1043 nm is 80 mW under the absorbed pumping power of 9 W.