Gen Prayuth received 191 votes from the 197- member NLA. Three members abstained from the vote.
The meeting was presided over by NLA Speaker Pornpetchara Vichitcholachai.
NLA member Tuang Antachai proposed Gen Prayuth to the NLA for nomination.
His proposal received 188 members to support, more than the required 99 members stipulated by the provisional constitution.
The Speaker then told NLA members to exercise their votes with regard to national interest and later called each member to verbally vote yes or no or abstain.
A total of 194 members attended the meeting today.
191 members voted yes with three abstained. The three are the speaker and his two deputies.
The NLA speaker will forward the nomination of Gen Prayuth to His Majesty the King for royal endorsement today.
Gen Prayuth was not in Parliament but was in Chonburi to preside over the 64th establishment anniversary of the 21st Infantry Regiment of the Royal Guards this morning.
He was former commander of this elite infantry regiment which is known widely as “The Queen’s Knights”.
Also attending the anniversary ceremony were Gen Anupong Paochinda, and Gen Prawit Wongsuwan, both were former army chiefs and commanders of this elite infantry regiment.
Gen Prayuth called off his scheduled luncheon party at the regiment at noon today and returned to Bangkok immediately after learning of the NLA’s vote.
Asked by reporters if he was approached before to be prime minister, he replied nobody approached him.
Pressed on with a question of whether he was ready to assume the position, he did not reply but just said let’s have the country go forward first.