Safronova was removed from her country's Olympic team prior to the Tokyo Games amid a dispute with Belarusian sports authorities, Poland's PAP news agency reported.
She was put on a "traitors list" after she disputed a judgement by officials that her horse, Sandro d'Amour, was limping, according to the Polish news agency.
Those on the list are unable to work or continue their sporting career in Belarus.
Safronova's horse, Sandro d'Amour, has since been examined and declared healthy in Poznań, western Poland, according to her lawyer, Tomasz Wiliński.
This shows that Safronova's expulsion from the Olympics "was a purely political move," Wiliński told PAP.
Meanwhile, Safronova told the Polish news agency that she had decided to take residence in Poland because she "received immediate help from many people" in the country.
Both the rider and her husband have received humanitarian visas from Warsaw, according to the PAP news agency.
Safronova was quoted as saying: "I am going to apply for Polish citizenship and wish to represent Poland. I want to continue my sporting career and be successful as part of the Polish team."
The rider noted she had previously qualified for World Cup finals and European championships, and won numerous international events.
Safronova told PAP in an interview she was "very happy" with the support she found in Poland.
She listed Polish opposition lawmaker Joanna Kluzik-Rostkowska among those who had offered "disinterested help" and backing to her.
Safronova added she was now safe, living and training with her horses near Warsaw, and being "able to focus on sport and arranging my life in Poland."
Kluzik-Rostkowska was quoted as saying by PAP that "everything was organised smoothly thanks to the help of the Polish ambassador in Minsk."
Last month, Belarusian Olympic sprinter Krystsina Tsimanouskaya asked for help and received a humanitarian visa from Poland.
She had been ordered to return to Minsk from the Tokyo 2020 Olympics for criticising Belarusian sports authorities.
After Tsimanouskaya found refuge in Poland, Belarusian President Alexander Lukashenko insisted she had been "manipulated," the PAP news agency reported.
(pm/gs)
Source: PAP