Pointed at the problem of Kyagar glacial lake outburst floods (GLOF) occured frequently in the Karakoram Mountains,the paper installed the observation stations at the Kyagar Glacier Lake which can monitor the local meteorology data，the images and Water level of the Kyagar Glacier Lake，etc.It analyzed the local climate data and images daily to know wether the Kyagar Glacier Lake forms and drainages. Thus，a flood warning can early alerts to Yarkant River flood plain. The monitoring system runs well and every technical indicator meets the requirement.