Before the Yutian M_S6.4 earthquake on June 26,2020 in Xinjiang Province of China some prospective and predictive seismicity and precursory anomalies have been found. In this paper,we systematically reviewed and summarized the earthquake forecasting procedure before the Yutian earthquakes. In terms of medium-term earthquake forecasting,the Yutian earthquake is located in the potential area of the annual earthquake hazard map provided by the China Earthquake Administration. It is encouraging that the occurrence time,location,and magnitude of the Yutian earthquake are well predicted. The medium-term forecasting is mainly based on the anomalies of mobile geomagnetic observation,combination of multi-methods(MMEP),seismic quiescence with M_S ≥ 5.0 and the quasi periodic characteristic of earthquakes with M_S ≥ 6.0 in this region. In the shot-term stage before the Yutian earthquake,the main anomalies are from seismicity patterns with M_L ≥ 4.0,the alert of the intermediate-depth earthquake occurrence,the vertical pendulum tilt meter at Yutian seismic station,the displacement changes in EW direction of Yutian and Hetian GNSS stations. For the Yutian earthquake,the geophysical anomalies as measured by sparse monitoring stations around,were evidently considerable precursors. These practical experiences allowed us to respond to and to conduct earthquake forecasting opinions quickly and efficiently. At last,we discussed lessons learned from the Yutian earthquake forecasting,including forecast procedures and identify both the seismicity and observed geophysical precursors before earthquake occurence.