He obtained his education at the third :ru:Александровское военное училище|Alexandrov's Institute, graduating it in 1885 as an infantry officer and soon enrolling into the Nikolayev Academy of General Staff which he finished it in 1891. At first he was commissioned into the 8th artillery brigade.
Staff adjutant
Since February 9, 1892 he was a senior staff adjutant of the 17th Infantry Division and since October 12 the same year he was the assistant to the senior staff adjutant of the Warsaw Military District. February 1, 1893 he was appointed as the senior staff adjutant of the 3rd Guard ID.
Staff officer
From December 6, 1893 until February 25, 1902 he was assigned as a staff officer to the headquarters of the 1st East-Siberian Rifle Brigade. July 15-September 8, 1900 he was the Chief of Staff of the South-Manchuria military unit. Since February 25, 1901 - duty staff officer of the Kwantung armed forces field headquarters.
Commanding officer
Since June 2, 1901 - acting military commissioner at the Mukden court, February 27 of next year in the Mukden government. From February 23, 1904 he was the chief of Mukden garrison and participated in the Russo-Japanese War. From March 9, 1904 he was assigned to the namestnik court of the Russian Far East and since September 6, 1905 was chief of staff of the Russian Far East armed forces. From December 27, 1906 he was the commander of the 1st East-Siberian Rifle Regiment.
On July 6, 1910 he was appointed the chief of staff at the 3rd Caucasus Army Corps with which he entered World War I as part of the 3rd Army of the South-Western front. For his achievements in battles near the town of Kodenitsy in September 1914 he was awarded the Order of Saint George of IV grade. Since January 8, 1915 he was the commander of the 21st ID. On February 8, 1915 he was transferred as the chief of staff to the 2nd Army of general V. V. Smirnov. From September 21, 1915 chief of staff of the Western front armies, the closest assistant to general Alexei Evert where actively participated in the planning for the military front operations. On April 3, 1917 he was appointed as the commander of the 3rd Army which was at the left wing of the Western front covering the Polotsk direction. He attempted to resolve the revolutionary situation in his units and even achieved from the Army Committee deportation to the rear of the most revolutionary adjusted saboteurs. At the start of the June Advance the army consisted of the 5th, 15th, 20th, and 35th Army Corps, but it did not participated in the advance.
After the July activities partook serious preventive actions to cease the revolutionary agitation in the army including after artillery fire the decommissioning of the 693rd Infantry Slutsk Regiment which refused to surrender the Bolshevik agents. From the October 20, 1917 became the commander of the Kiev Military District and unsuccessfully tried to extinguish the Kiev Bolshevik Uprising. He showed himself as a non-initiative leader and virtually surrendered his officers to the Bolsheviks.
When general Miller was appointed the head of the anti-Bolshevik government of the Northern Oblast in January 1919, Kvetsinsky was made the chief of staff of his Northern Army. Later Kvetsinsky was requested to resign, yet remained the chief of staff until the evacuation of the White Russian forces in February 1920.
Life in exile
He emigrated to Tromsø, Norway along with the rest of the Miller's government officials on ice-breaker Kuzma Minin. During the withdrawal from Arkhangelsk a sea battle took place between two ice-breakers which is the only battle in the history involving ice-breakers. For a short while the Russian immigrants were interned in the Norwegian military camp Værnesmoen. Upon release Kvetsinsky worked as a bootman, but later moved to Lillehammer, Norway. There he found job at the local brewery while also driving a taxicab. His son Wassily von Kwetzinsky who was a captain in the Russian Army enrolled into the Norwegian Institute of Technology in Trondheim, and later become a noted music critic. After couple of years Kvetsinsky became sick and was put into a local Red Cross hospital where he died after several months on March 31, 1923. He was buried at the city's cemetery in Lillehammer.