In a special interview for Polish Radio, Jonathan Knott said the application process was simple.
"Please do that as soon as you can ... The sooner you do, the more straight-forward life in the UK is going to be," he added.
Britain formally leaves the European Union at midnight Polish time on Friday. A transition period starts on February 1 and is due to last until December 31.
During this time, EU citizens will continue to have the right to travel freely to and from Britain. After the transition period ends, EU citizens will need “settled status” to be able to stay in the UK.
Knott added that even after leaving the bloc, the UK will continue to encourage students and scientists to come to the country.
"The British government has brought in a new ... high-talent system, for people who would like to come to the UK to act as researchers, to collaborate with British colleagues. There is a new fast-track system for those people," Knott said.
About 400,000 out of 900,000 Polish citizens living in the UK have not yet applied for “settled status.”
EU citizens have until June 30, 2021 to apply.
Click on the ‘Play’ icon above to listen to Jonathan Knott speaking to Polish Radio reporter Wojciech Cegielski