The workers are victims of cruelty and violence at the hands of corrupt officials who eventually seize up to 90 percent of the pay that they earn.
The North Koreans who are put to work in Russia are paid approximately 50,000 rubles a month, which is equivalent to $841.
At least half of that sum is confiscated by a minder from the ruling Workers' Party of Korea and a construction crew boss will take another 20 percent, according to the report.
They are sent to Russia where they generate $120million ever year for the North Korean government, according to the Data Base Center.
The Seoul-based Data Base Center for North Korean Human Rights issued a report which estimates that approximately 50,000 laborers are employed in Russia. About 8,000 North Korean workers are seen above rehabilitating salt plains in Nampo, North Korea on April 17
'The North Korean government maintains strict controls over their workers' profits, in some cases probably taking 90 percent of their wages,' Scott Synder, director of the Program on US-Korea Policy at the Council of Foreign Relations, told Fox News.
'This is an issue that has been going on under the radar for a long time.'
Seizure of wages is one of the few ways in which the North Korean government generates revenue.
International sanctions against Pyongyang combined with a dearth of products that can be exported has left the impoverished and isolated country short on cash.