Pchum Ben - the Cambodian ancestor festival that ends with a fifteen-day pyre and an ox burned for humanity
Pchum Ben is a Cambodian Khmer ancestor festival held over fifteen days around the new moon of the tenth lunar month. Monks build a funeral pyre of sand and rice, and an ox effigy symbolising the primordial flood is burned as a symbolic funeral for humanity.
Religious observancePublished October 22, 2026
- Observed in
- KHWhere observed
- When
- October
- Frequency
- Lunar calendar (date shifts)
- Days off
- 0 days - cultural observance only
- Public status
- Religious observance - schools / shops normally open
Pchum Ben is the Khmer ancestor festival that runs for fifteen days around the new moon of the tenth lunar month. Monks build a funeral pyre out of sand and rice, and an ox effigy is burned on it - a symbolic funeral for humanity itself.
The one-line summary
Fifteen-day Khmer ancestor festival centred on the new moon of the tenth lunar month, usually late September to early October. Religious category, standard tier. A two-day Cambodian public holiday.
Origin
The festival takes its name from chum, a Khmer term for a funerary anniversary, andben, which refers to gathering. Together the formal name Preah Sangkol Preah Ben - "the great funeral ceremony" - names what is essentially a concentrated annual act of ancestral merit.
Khmer cosmology supplies the festival's central image. Humanity was preserved through a catastrophic flood by an ox, and that story sits within a South Asian family of flood narratives that also produced Manu in Sanskrit tradition and the Ark in Genesis. Burning the ox is not a claim about an animal's death but about the end of a world - the festival stages a complete cremation so that renewal can follow.
When it falls
Pchum Ben tracks the new moon of the tenth lunar month. The main ceremony falls on the fifteenth night, and the surrounding fifteen-day period opens with Phum Ben, runs through Phum Pheak and closes with Phum Daeng Ben. Because the dates are lunar, Cambodian calendars publish them only in the preceding months, by royal decree.
How it is observed
At each participating monastery the monks spend days constructing a bon - a symbolic funeral pyre built from sand and rice, assembled in the shape of a stupa. On the principal night an ox effigy is burned on it while chants are recited and candles are set around the structure.
Families offer food to the monks and dedicate merit to their ancestors. The distinctive provincial feature is the house-to-house chanting group: elderly women walk between houses reciting Pali sutras for a day or more at a time, and are fed by the household they visit. Between 2005 and 2007 a practice of untying and releasing cattle at pagodas drew sustained national criticism and official campaigns against animal cruelty; it has largely disappeared.
Public status
Pchum Ben is a Cambodian public holiday, typically two days, gazetted each year by royal decree. Neighbouring Thailand and Laos observe closely related ancestor festivals around the same lunar date, so the same week carries merit-making across three national calendars.
Where it is contested
The festival is not contested as a religious observance. What has been contested is practice rather than doctrine: the cattle releases of the mid-2000s were objected to on animal-welfare grounds and by Buddhist authorities who considered the ordination of animals unmeritorious. That campaign is a reminder that in Theravada countries these festivals are not static heritage - they are actively revised.
Related holidays
Pchum Ben belongs to a family of Asian ancestor festivals: the tenth lunar month also carries Ching Ming in Taiwan, Vu Lan in Vietnam, and the HinduSharad Purnima andKartik Amavasya in South Asia. In Cambodia it sits three months after Khmer New Year in April and three months beforeBon Om Touk.
Sources
- Ministry of Tourism Cambodia(official description of the Pchum Ben ceremony and the bon pyre).
- ACLED - Cambodia reporting(coverage of the 2005-2007 cattle-release controversy and the official response).
- Encyclopaedia Britannica - Ancestor Worship(context for Southeast Asian merit-transfer to the dead).
- UNESCO - Intangible Cultural Heritage(parallel listing of Khmer ritual and performing-arts traditions).