Ryozenji temple was opened by Gyoki Bosatsu for the Tempyo era (729-48) that is caused by the prayer of the inperial ordinance of the Emperor Shomu. Kobo Daishi stayed here for twenty-one days, he got hold of Buddha's teachings, and he prayed to open the 88 Buddhist temples in Shikoku, For this time he was inspired by Shaka Nyorai, he carved this figure and he made the principle image of this, then he built a temple and he enshrined it. He named it Jikuwasan Ryozenji temple in the sence of that the spiritual mountain in Tenjiku was transfered to out country. Arter that, Taishi looked for the training hall of Dainichi Nyorai's Taizokai Mandara in Shikoku, he made the training hall-a religious awaking (the province of Awa), ascetic practices (the province of Tosa), Bodhi )the province of Sanuki) - of each province, and he opened the 88 Buddhist temples in these training hall, he decided to make Ryozenji temple the first temple of the 88 Buddhist temple. After that, the desting of the temple prospered very much, but many temples and pagodas were destroyed by a fire caused by war of Chosogabe's army for the lensyo era (1573-93). It was rebuilt by and by, but it was destroyed except for the main temple and Tahoto by the outbreak of fire from the temple for the virgil 24 in the Meige era, the present building is rebuilt after that. The main temple was disolved and restored to its former condition 40 in the showa era.

The principal image of Buddha 'Shaka Nyorai' is enshrined in the grand main temple, and a pirgrim can receive giving the commandments of Buddhism when a pilgrim starts in the Taishido at the right hand. Giving the commandments of Buddhism is Juzendai (ten good admonition), that is to take ten oaths-Fusessho (must not kill a living thing), Fuyuto (must not steal), Fujain (must not commit adultery), Fumogo (must not tell a lie), Fukigo (must not tell the word of an affection), Fuwarukuchi (must not say abuse), Furyozetsu (must not be double-tongued), Fukenhin (must not covet), Fushini (must not get angre) Fujaken (must not think of injustice), and then to become Kobo-Daishi's pupil to keep to this. Although a pilgrim can not receive giving the commendments of Buddhism, if he continue the pilgrimage without losing only this mind, he can commune with unknown pilgrims warmly, and he can continue a pleasant journey. The main priest's residential quarters attached to this Buddhist temple is the main head office of the pilgrimage in Shikoku, and here you can prepare the women hat, the stich and the white coat and so on of the utensils for pilgrimage use and the note or the hanging scroll to offer a copy of a sutra to temple to temples. It is customary that the pilgrim pays a visit of thanks to Koyasan after he finished the pilgrimage of the 88 Buddhist temples and Kechien at Okuboji temple, but it is to be desired that a pilgrim pays a visit of thanks to this first temple in Shikoku.