Pyongyang leader Kim Jong-un reportedly offered reinforcements in exchange for power and grain from Moscow.
Russia’s Regnum news agency claimed the pariah communist state would also provide builders to help repair war damage.
Vladimir Putin is expected to deploy the additional personnel to his allies in the eastern breakaway republics of Donetsk and Lugansk.
Igor Korochenko, a reserve colonel and TV defense analyst, said Moscow should gratefully accept the offer of help.
He claimed Kim’s fighters had artillery systems and extensive experience in rocket systems and counter-battery warfare.
“We should not hesitate to accept the hand extended to us by Kim Jong-un,” he said.
“If North Korea wants to participate in the conflict, well, let’s give the green light to its volunteer momentum.
“If North Korea expresses a desire to fulfill its international duty to fight Ukrainian fascism, we should let them.”
The news came as Russia was accused of employing ‘terrorist tactics’ by launching rocket attacks on civilians near Europe’s biggest nuclear power station.
Residents living near the Zaporizhzhia site in eastern Ukraine say houses were shelled.
Earlier this week, Rafael Grossi, head of the UN nuclear agency, said the hard-hit site was “completely out of control”.