This study focusing on the river of active volcanic territories in Kamchatka Peninsula located in Russia. The study area has a range of hydrological features which determine the extreme amounts of washed sediments. It is believe that sediment transport in and to river channels in volcanic mountainous terrain is strongly influenced by climate conditions, particularly when heavy precipitation and warmer climate triggers a mud-flow in association with snow melting. This study focusing on the relationship between suspended sediment discharge and river discharge in volcanic area, Kamchatka, and the results are compared with Japan and Malaysia’s mountainous river.