"Comstock" sailed for the Far East 7 July 1950 and arrived at Sasebo, Japan, 12 August, to support the United Nations operations in Korea. She joined in the initial invasion at Inchon, 15 September, and remained there as a repair and salvage vessel until 4 October. She also saw action during the invasion of Wonsan on 26 October. In January 1951 she was assigned as flagship for Mine Squadron 3, and furnished gunfire cover and logistic support during minesweeping operations along the east coast of Korea. On 2 February 1951 she rescued the survivors of "Partridge" (AMS-31) which had been mined and sunk. She also furnished landing craft for the use of British Royal Marines in their commando raid south of Chinnampo on 20 May. "Comstock" returned to her home port, Long Beach, on 15 June 1951.