In 1896 Grigory Prokopyevich graduated with a gold medal from the Ufa gymnasium, in 1901 - from the Military Medical Academy (now The S. M. Kirov Military Medical Academy) in Saint Petersburg.
At the Military Medical Academy in Saint Petersburg, Grigory Prokopyevich met with P.F. Yakubovich and V.G. Korolenko and maintaining contacts with them until the end of his life. After graduating, he served as a military doctor.
The first major article of Grigory Prokopyevich "Zavodskaya Chastooshka" was published in the newspaper "Uralskaya Zhizn" in 1901 and determined one of the directions of the literary activity. He as well collaborated with the magazines "Russkoye bogatstvo", "Vestnik Europe".
In 1903, in the magazine "Russkoye bogatstvo" the essay "Skazitel' - guslyar" was published, in 1904 the cycle "Ural'skiye etyudy" was published.
In 1904-1905 he took part in the Russian-Japanese war. In the spring and summer of 1904, Grigory Prokopyevich served in the medical service in the Military Unit of the Russian Troops in Manchuria. Demobilized due to a serious injury. In 1905 he published the novel "Na voyne" and military stories in which he described the Russian-Japanese War, for which he was persecuted by censorship. He was forbidden to live in Saint Petersburg and was restricted from practicing medicine.
Quotes from others about the person
Korolenko about the stories of Larionov after 1907: "Despite the liveliness of presentation, everything responded with sophisticated and artificiality".
About the story "Na voyne": "It is read with unflagging attention; the figures of officers, doctors, and soldiers are painted with expressiveness by few, shallow, but true touches, and the horror of war, although the author does not exaggerate, appears in all its bloody brightness".
A.G. Gornfeld, comparing the book of Beloretsky with the "Red Laughter" of L.N. Andreev, wrote: "Beloretsky himself was on this deplorable war, and not at the heights of theoretical thought, but at the bottom of his immediate experiences, he found that formula that completely describes our past war, embraces its horrors and its madness ... and the story "No ideas" is its symbol, its tragedy".