On May 15th, 1926, Troshin was born into a worker's family in Mihailovski village, Sverdlovsk region. It is reported that the Troschens love music very much, and Troshin was able to play balalaika and accordion at the age of 9.

In p>1943, after three rounds of rigorous selection, Troshin was admitted to Moscow Model Art Theatre College. There, Troshin's artistic talent was fully explored. He not only performed well, but also had a good lyric tenor voice. Since 195s, Troshin, along with Klavdi Shulzhenko, Maia Kristalinskaya and others, has enjoyed a good reputation in the music world, and was a dazzling star in the Soviet music world at that time.

Troshin worked on the Chekhov stage of Moscow Model Art Theatre for more than 4 years. In addition, he also appeared in 2 films and sang episodes for more than 7 films. In 1968, Troshin was awarded the title of "Russia Joined the Republic of China as a Meritorious Actor". In 1985, he was awarded the title of "Russian People's Actor".