Party leader Olena Shuliak approved Bezuhla's resignation request, the lawmaker said.
In her post, Bezuhla criticized her former party for resistance to policy changes, while saying that said policies "aren't all terrible."
“Many competent managers and hundreds of interesting individuals remain in the party,” she said.
“There was potential for significant development. Even Shuliak has potential, but currently, the party is coasting on inertia without the leadership's willingness to progress.”
Bezuhla expressed support for Ukrainian President Volodymyr Zelenskyy, who, in her view, has “grown significantly” during his challenging term in office.
Earlier on Feb. 6, the Ukrainian parliament failed a vote to remove Bezuhla from her position as Deputy Chair of the Defense Committee.
On Jan. 11, Bezuhla had announced her intention to leave Servant of the People party, and her resignation request was processed on Jan. 12.
Late last year, Bezuhla began publicly criticizing Commander-in-Chief of the Armed Forces of Ukraine Valerii Zaluzhnyi.