It is set to conclude the former reality TV star has a tendency to take risks and that he has a naive world view, according to a senior adviser to the Kremlin.
Mr Trump “doesn’t understand fully who is Mr Putin — he is a tough guy”, former Deputy Foreign Minister Andrei Fedorov told the network.
The dossier is being prepared ahead of the first official meeting between the two leaders, the date of which is yet to be confirmed.
Inside the Kremlin “very serious preparatory work” was taking place that included a seven-page dossier on the mentality of the Republican, he added.
The decision to prepare such a detailed psychological profile of a US leader is unusual, according to NBC.
Trump and Putin passionately kiss in street mural
Mr Trump has been battling negative press coverage over his campaign’s ties to Russia.
Mr Federov said the issue of the former Soviet state had become “a kind of banana skin for Trump — that’s why we should avoid any kind of step that could damage Trump”.
A meeting between the two leaders is possible ahead of a G20 summit in July, the Kremlin said.
The two men have never met, but both have said they want to work to repair damaged US-Russia relations, which took a battering after Moscow annexed Ukraine’s Crimea in 2014.