After the end of the war, Kryuchenkin continued to serve with the 11th Cavalry Division. In October 1921, he was appointed acting commander of the 63rd Cavalry Regiment, leading it in the suppression of the Revolutionary Insurrectionary Army of Ukraine, the forces of Talak and Savinkov and other opponents of the Soviets in Belorussia. In late November he was sent to study at the Kiev Combined Military School. After graduating in September 1923, Kryuchenkin returned to the 11th Cavalry Division and served as an assistant squadron commander and acting assistant commander of the 64th Cavalry Regiment for personnel. From June 1924 he served as acting regimental commander, then as chief of the regimental school of the 62nd Cavalry Regiment. During this period he fought in battles against the Basmachi movement in the region of Samarkand, Dushanbe, and the Afghan border. From September 1925 to September 1926, Kryuchenkin completed the Cavalry Officers Improvement Course at Novocherkassk, and on his return to the division was appointed to the 44th Cavalry Regiment as chief and "politruk" of the regimental school. He served as secretary of the regimental party bureau between September 1927 and August 1928. In December 1928, Kryuchenkin was sent to the Volga Military District, where he served with the 46th Cavalry Regiment of the 8th Cavalry Division as chief and "politruk" of the regimental school and regimental chief of staff.