The collection consists of firearms, edged weapons and artillery equipment. The entire collection, there are 496 items. The largest part consists of artillery weapons and ammunition samples - 248 storage units, firearms - 102 units, edged weapons - 146 units.
The main period of formation of the museum's weapon collection dates from the late 19th century to the second half of the 20th century. About 70 % of the collection was formed before 1970s. The arrival of items in the weapon collection directly depended on the events taking place in the Amur region, mainly weapons came into the funds after the end of a military event whether it was the Russo-Japanese War or the Second World War.
The first weapon additions to the museum of the Priamursky department of the Imperial Russian Geographical Society (further - POIRGO) (at present - N.I. Grodekov Khabarovsk regional museum) were registered right after its creation in 1894. A great role in that was played by the first chairman of the board of POIRGO Nikolai Ivanovich Grodekov, one of founders and permanent donor of the museum of POIRGO. One of his most famous gifts is a 6 inch cannon, made in Germany in Spandau (Zitadelle Spandau). N.I. Grodekov arranged for removal to the Khabarovsk Museum 12 old cannons discovered during the reconstruction of Port Arthur, among which was a 6 inch cannon made in Germany (represented at the outdoor exhibition "Cannon battery").
Weapons and deactivated ammunition came to the museum one at a time or in small collections. The most common firearms in the museum collection are wick, flintlock, and rifle made in the late 19th - and up to the middle of the 20th centuries, adapted for hunting. In 1956 a small collection of such guns came from the State Historical Museum (GIM). In 1996 a part of the collection of modern firearms of the 20th century, mainly of domestic manufacture, was given to the Khabarovsk Museum from the Khabarovsk Museum of Komsomolsk glory (4 automatic rifles, 3 machine guns, 2 rifles, a carbine, a pistol and a revolver). The collection was made by workers of the Museum of the History of Youth Movement in the late 1970's and early 1980's with the participation of the Regional Committee of the Komsomol party and with the help of the KDVO command to create the exposition "Komsomol of the region during the Civil War and the Great Patriotic War".
A collection of 61 shells, shell casings and artillery shells came to the museum from the military warehouse in 1975 for the exposition "The Region during the Great Patriotic War of 1941-1945". The type of shells is similar to the samples of the Great Patriotic War period.
The collection of edged weapons was partially formed from the spoils of the suppression of the Boxer Rebellion in China (1899-1901). In the exhibition devoted to the Civil War in the Far East, there is a thematic complex "Collection of Oriental Weapons".
The collection of edged weapons also includes Cossack swords and daggers.
Ammunition is represented by machine gun ribbons, artillery and rifle casings, cannon shells, cannonballs, grenade casings, and artillery shell fragments.