Prasat Hin Sa Kamphaeng Noi is a Khmer archaeological site of major historical importance in Sisaket Province, Thailand. It is believed to have been constructed around the 12th–13th century CE, during the peak of the Khmer Empire under King Jayavarman VII.This site is classified as an “Arokayasala,” an ancient hospital complex built to provide care for the sick and traveling people along important communication routes of the Khmer Empire. Rather than being a grand temple like Angkor Wat, it served a public welfare and medical function, reflecting a governance system that emphasized community well-being at the local level.The concept of Arokayasala is closely linked to Mahayana Buddhism, particularly the ideal of the compassionate healing bodhisattva. This belief led to the establishment of more than 100 hospital-temple complexes across the Khmer Empire, spanning present-day Cambodia, Laos, and northeastern Thailand.

Architecturally, the site follows the standard layout of an Arokayasala complex. It consists of a laterite main sanctuary built in a square plan with indented corners, symbolizing sacred cosmology in Khmer belief.To the southeast lies a library building, believed to have been used for storing religious texts, medicinal knowledge, or herbal materials used in healing practices, demonstrating the integration of religion and early medical systems.

The entire complex is enclosed by a laterite wall with a gopura (gateway) on the eastern side, in accordance with Khmer sacred orientation, where the east represents beginnings and auspiciousness.Nearby, a laterite-lined sacred pond is also present. It is believed to have been used for ritual purification before ceremonies and may have had connections to royal or religious water rites in the Khmer period. Even today, it is still respected by local communities as a spiritually significant water source.

The architectural style of the site is classified as Bayon style, characterized by the influence of Mahayana Buddhism during the reign of Jayavarman VII. This style emphasizes simplicity, compassion, and spiritual purpose rather than monumental grandeur.Today, Prasat Hin Sa Kamphaeng Noi is located within Wat Thep Prasat and continues to function both as an archaeological heritage site and a sacred place for local religious activities, maintaining its cultural and spiritual significance to the present day.

• By car: From Sisaket city center, take Highway 226 toward Uthumphon Phisai for about 8–9 km. When you reach Wat Thep Prasat, the site will be on the right-hand side. You can drive into the temple and park inside.

Admission Fee:

• Free of charge (no admission fee)

Opening Hours:

• Open daily from 06:00 – 18:00