Before Buddhism became widely established, Mongols traditionally followed sky worship, reverence for nature, and shamanic beliefs. Until around the 13th century, spiritual life in Mongolia was deeply connected to Eternal Blue Sky worship, ancestral respect, mountains, rivers, and the natural world. These beliefs formed the spiritual foundation of early Mongolian society and remained influential even after Buddhism spread.
Although Buddhist ideas had entered the Mongol world earlier through cultural exchange, Buddhism became much more influential from the 13th century onward. Its strongest expansion took place from the 16th century, when relations with Tibetan Buddhist leaders grew and Mongolian rulers began actively supporting the religion. From that time, Buddhism gradually developed into a major religious, cultural, and intellectual force in Mongolia.
By the late 16th and 17th centuries, large monasteries were being built across the country, and Buddhism became closely tied to education, philosophy, medicine, art, architecture, and literature. Monasteries were not only places of worship but also centers of learning and artistic production. The influence of figures such as Zanabazar, the first Jebtsundamba Khutuktu, played an especially important role in shaping Mongolian Buddhist identity.
In Mongolia, the Gelug tradition became the dominant school of Tibetan Buddhism. At the same time, some local ritual practices, protective rites, sacred vessel traditions, and older spiritual customs continued to exist alongside formal Buddhist worship. This blending of Buddhist teachings with Mongolian spiritual culture gave Mongolian Buddhism a distinctive character.
Major Monasteries in Mongolian Buddhist History
Erdene Zuu Monastery
One of the earliest major Buddhist monasteries in Mongolia, founded near the ancient capital of Karakorum in the late 16th century under Abtai Sain Khan.
Ongiin Khiid
A major monastic complex in the central Gobi region, once home to around 1,000 monks and an important religious center before its destruction.
Amarbayasgalant Monastery
One of Mongolia’s most beautiful and best-preserved monasteries, admired for its elegant architecture and connection to Zanabazar.
Gandantegchinlen Monastery
The most important active Buddhist center in modern Mongolia and one of the few institutions that survived the socialist era.
Erdene Zuu Monastery
Erdene Zuu is considered one of the earliest major Buddhist monasteries in Mongolia. It was established in the late 16th century under Abtai Sain Khan near the ruins of Karakorum, the ancient capital of the Mongol Empire. Because of its location and historical significance, Erdene Zuu became one of the most important religious and cultural monuments in Mongolia.
The monastery symbolized the formal establishment of Buddhism in Mongolian political and religious life. Its walls, temples, and sacred compounds reflected the growing prestige of Buddhism during this period.
Ongiin Khiid
Ongiin Khiid, located in the central Gobi region, was once one of the most important monastic centers in southern and central Mongolia. Established in the 18th century, it eventually grew into a large religious complex with many temples, educational sections, and monk residences.
At its height, Ongiin Khiid is often said to have housed around 1,000 monks. It served as a major spiritual and educational center until the 20th century. Today, only ruins and partially restored sections remain, but the site still carries deep historical and spiritual significance.
Amarbayasgalant Monastery
Amarbayasgalant Monastery, located in northern Mongolia, is one of the most beautiful and best-preserved monasteries in the country. Built in the 18th century and associated with the memory of Zanabazar, it is admired for its architectural elegance, peaceful landscape, and spiritual importance.
Unlike many other monasteries, Amarbayasgalant survived in better condition, although many valuable religious objects and treasures connected to monastic life were lost. Some historical accounts suggest that important items were removed or taken away during periods of political upheaval, including to Russia.
Gandantegchinlen Monastery
Gandan Monastery in Ulaanbaatar is the most important active Buddhist center in modern Mongolia. Founded in the 19th century, it became a major spiritual institution and later played a crucial role in preserving Buddhist practice during difficult political times.
Even when religion was severely restricted during the socialist period, Gandan remained one of the few surviving religious institutions. Today it is once again a living monastery, a center of worship, monastic training, and one of the most visited spiritual sites in the country.
1937 Repression and the Destruction of Monasteries
One of the darkest chapters in Mongolian religious history came during the political purges of the 1930s, especially in 1937. At that time, Buddhism in Mongolia had already developed a vast network of monasteries, temples, and thousands of monks. However, during the communist repression, religion was violently targeted.
Hundreds of monasteries were destroyed, burned, or dismantled. Thousands of monks were arrested, executed, imprisoned, or forced to abandon monastic life. This campaign nearly erased Mongolia’s Buddhist institutional life and caused an enormous cultural and spiritual loss.
The Tragedy of Ongiin Khiid
Ongiin Khiid was among the monasteries devastated during the purges. Once a major complex with around 1,000 monks, it was destroyed and its monastic community was eliminated. The surviving ruins stand today as a reminder of this tragic period in Mongolian history.
Erdene Zuu During the Purges
Erdene Zuu also suffered major destruction. Many temples and structures were damaged or demolished. Unlike some monasteries that disappeared completely, Erdene Zuu survived in part and was later restored. Today it remains one of Mongolia’s most important historical and religious landmarks.
Amarbayasgalant and Lost Treasures
Amarbayasgalant was more fortunate than many other monasteries in terms of physical survival, yet it also suffered major losses. Valuable religious objects, artworks, and sacred items disappeared, and some accounts state that important monastery treasures were taken away during the political upheaval.
Buddhist Revival in Modern Mongolia
After decades of suppression, Buddhism began to revive in Mongolia after the democratic changes of the 1990s. Religious freedom returned, monasteries reopened, restoration work began, and a new generation of monks was trained.
Today Buddhism remains one of the most important spiritual traditions in Mongolia. Historic monasteries, active temples, sacred sites, and revived religious practices continue to shape the country’s identity. For many visitors, monasteries are not only impressive historical monuments but also living places of faith and cultural memory.
Sacred Ritual Traditions and Special Monasteries
Some Mongolian monasteries are also associated with special ritual practices, protective ceremonies, sacred vessel traditions, and unique forms of worship. Certain temples are remembered not only for their architecture but also for ritual lineages connected to blessings, protection, and spiritual offerings.
These traditions reflect the way Mongolian Buddhism developed in conversation with older Mongolian beliefs and regional customs, rather than as a purely imported religion.
Aglag Buteeliin Monastery and Contemporary Spiritual Culture
In modern Mongolia, Buddhism is not limited to ancient monasteries alone. New spiritual sites have also emerged, showing that the tradition remains alive and evolving. One well-known example is Aglag Buteeliin Monastery.
Aglag Buteeliin Monastery was founded by the monk and artist Purevbat. It is relatively young compared to Mongolia’s historic monasteries, yet it has become widely admired for its peaceful environment, mountain setting, rock carvings, and combination of artistic vision and spiritual space.
The monastery shows how Buddhism in Mongolia continues to inspire not only faith, but also creativity, pilgrimage, meditation, and cultural renewal. It is a reminder that Mongolian Buddhism is not only a story of the past, but also a living tradition in the present.