The unit, referred to as Task Force HIPPO Polska, arrived at the Powidz air base in central Poland last week, Polish state news agency PAP reported.
It consists of three Mi-171 "Hip" multi-role helicopters from the Czech army, and a 100-strong team of pilots, engineers and logistics officers, according to authorities in Prague.
The Mi-171 helicopters can be used for reconaissance, transport and as armed gunships, among other uses, experts said.
The Czech team is tasked with supporting Poland's special forces and strengthening the defence of NATO's eastern flank, the PAP news agency reported.
It's one-year spell in Poland is part of wider cooperation between the special forces of Central and Eastern European nations, Polish army said.
This year, the special forces of CEE countries held joint exercises in Slovakia, the PAP news agency reported.
Source: PAP, Altair, Portal Obronny