Chalermpol as a soldier in the cavalry, he start his careers as Commander of the 25th Cavalry Battalion at Saraburi and then Chief of Staff of the 2nd Cavalry Division, King Vajiravudh’s Guard. He take part in writing the plan "Chakrabongse Bhuvanath Battle Plan" in the Cambodian–Thai border dispute in 2011. After growing up in the army he has moved to Royal Thai Armed Forces Headquarters as Chief of Staff Royal Thai Armed Forces Headquarters and then became Chief of Defence Forces in 2020.