After the official creation of the Cambodian National Police Force in 1945, the Training School for the National Police was also established, and has been subsequently changing its name as in the followings:

I. 1^st Stage: The Kingdom of Cambodia (1945–1970)

1. The Police Professional School was established in 1947
2. The Rulers Training School was established in 1952
3. National Police School was established in 1954
4. Royal Police Academy was established 1959
5. Royal Police School was established in 1960

II. 2^nd Stage: The Khmer Republic (1970-1975)

In 1973, the Government of Khmer Republic had established “The Personnel Education and Training Center”.  

III. 3^rd Stage: The Kampuchea People’s Republic-The State of Cambodia (1979-1993)

After the fall of the Kampuchea Democratic regime, the Police Institution was established with its name “People Police” and it was led by comrade Chhea Sim. In this stage, the People’s Police Training School was established under the following names:

1. Central People’s Police School was established in 1979, located in BoreyKeyLar, having 4 branches mainly, People’s Police School 1 (KorbSrov area, Phnom Penh), People’s Police School 2 (Kampong province), People’s Police School 3 (Kandal province), People’s Police School 4 (PreyVeng province).
2. Toul Kork National Police School was established in 1991, located in Toul Kork, Phnom Penh capital.    

IV. 4^th Stage: The Kingdom of Cambodia (1993 to Present)

1. DeyEth National Police School was established in 1996, located in Sdao Kanleng village, Kien Svay district, Kandal province.
2. Royal Police School was transformed from the DeyEth National Police in 2002.
3. The Police Academy of Cambodia (PAC) was transformed from the Royal   Police School in 2007, currently located in Sdao Kanleng village, DeyEth commune, Kien Svay district, Kandal province with the land area of 134,922 square meters (more than 13 hectares). 

The Police Academy of Cambodia has 6 Regional National Police Schools as in the followings:

• National Police School, Region 1 (Stung Treng Province)
• National Police School, Region 2 (Kampong Cham)
• National Police School, Region 3 (Kampong Speu)
• National Police School, Region 4 (Siem Reap)
• National Police School, Region 5 (Battambang)
• National Police School, Region 6 (Kampong Chhnang)