The temple was founded as a Tendai sect temple by order of Emperor Junna. However, written records from this time are scarce. During the late Nara period and early Heian period, after the establishment of a centralized government under the Ritsuryō system, the imperial court sent a number of military expeditions to what is now the Tōhoku region of northern Japan to bring the local Emishi tribes under its control.[1] Numerous temples were built in the region at this time, many of which are attributed to Jikaku Daishi. The temple was patronised by the Northern Fujiwara clan, and priests from Zuigan-ji met with Minamoto no Yoshitsune, and also with Minamoto no Yoritomo during his campaign to destroy the Northern Fujiwara at Hiraizumi.
Hondō (Hōjō), the main building, which was completed in 1609, measures 39 meters by 25.2 meters and houses the principal Buddhist image.[2] Many parts of the temple have been designated as natural treasures and important cultural assets.
Zuigan-ji also features a number of caves carved into the rock. These caves were used for memorial services and as a cinerarium to house the ashes of the deceased. The caves were constructed in the Kamakura period and remained in use until the Edo period.
The temple grounds also contain the Zuigan-ji Art Museum established on October 1, 1995, to display various artifacts, including calligraphy by former head monks, fusuma paintings, tea cups and portraits.