Anutin secured the prime ministership with 293 out of 498 votes, well above the 249 required. His coalition now controls 292 of the 499 seats in parliament.
Before officially taking office, Anutin must be formally appointed by King Maha Vajiralongkorn in the coming days.
To address the conflict with Cambodia, Anutin's Bhumjaithai party has promised to build a new border wall, close illegal crossings, and recruit around 100,000 volunteer soldiers.