On April 27, 1917, work on the Bokor Mountain Road began with the arrival of 800 prisoners and laborers from all across Cambodia. Between 1,000 and 2,000 employees, both inmates and civilians died during the construction, which was completed in 1921. The hotel, vegetable garden, and Wat Sampov Pram were completed in 1924, and the temple was dedicated on February 14, 1925.
For the next two to three years, Bokor was abandoned. Cambodia began to renovate after gaining independence in 1953. On January 7, 1962, King Norodom Sihanouk, the Head of State, was formally inaugurated after a makeover. The Bokor Hotel becomes a casino for guests to visit after the inauguration, especially on weekends.
Bokor was re-opened in 1970 after a coup led by General Lon Nol, and it became a bastion for the Khmer Rouge. For three months in 1979, Vietnamese troops drove the Khmer Rouge out of the Catholic Church before retreating.
In 1992, the Bokor Road was repaired by the French Brigade (UNTAC). On May 3, 2012, Bokor Resort was inaugurated under the presidency of Samdech Akka Moha Sena Padei Techo Hun Sen, Prime Minister of the Kingdom of Cambodia under the name "Thansur Bokor Resort".