本文探討日蓮正宗在臺布教歷史及其重要宗教觀念。日蓮正宗與創價學會未分裂前，海外布教由創價學會負責，臺灣地區亦是如此。民國50年左右本島即有「日蓮教」（創價學會）信徒活動，但當時臺灣處於戒嚴時期，此宗被視為地下宗教而遭查禁。解嚴後創價學會成立宗教與文教單位，積極從事教義、文化、國際交流的推廣。1991年日蓮正宗與創價學會正式決裂後，由宗門派遣僧侶來負責布教事業，並設立寺院。 日蓮正宗的主要宗教觀念，包括：《法華經》至上唯一的聖典觀，強調不應摻雜其他教法。三大必法的敬科體系，以日蓮書寫的「大御本尊」文字曼荼羅為本佛的代表，安置「大御本尊」之處所即為本門戒塘，以「南無妙法蓮華經」將一切真理濃縮其中，稱念此經題為核心的修行方法。此宗有特殊的三寶觀，後世門徒將上行菩薩再誕的日蓮視為佛寶，大御本尊所代表的真實妙法為法寶，日興及其直傳的本宗僧人為僧寶。因應當代宗教的開放環境，此宗強調信教獲致人生幸福的攝受方法，批判其他宗教的力道不如過往強烈。

This Article probes the propagation history of Nichirenshoushu in Taiwan and its main religious ideas. During the period before Nichirenshoshu broke off with Soka Gakkai, the later was responsible for overseas missionary work, the case in Taiwan included. About 1961, the members of “Nichirenshu” (Soka Gakkai) began to preach in this island. At that time, Taiwan was a district under martial law, and this Japanese religion, regarded as an illegal sect, was prohibited. After the martial law was abolished, Soka Gakkai set up units responsible for religious and cultural affairs in Taiwan to promote the works of preaching teachings, cultural undertakings, and international exchanges. After Nichirenshoushu broke with Soka Gakkai in 1991, priests sent to Taiwan by the head-monastery in Japan were in charge of missionary work, and established monasteries. The main religious conceptions of Nichirenshoushu include: The Lotus Sutra in the highest canon, and should not be mixed with other texts. The three mysteries are the objects of the worship system of this Buddhist school. The “Great Gohonzo”, a mandala depicted by Nichiren with Chinese characters, is the representation of Original Buddha. The place were the “Great Gohonzo” installed is called the original platform for religious disciplines. The title of the Lotus Sutra conceives all truths, so the chanting of its title becomes the key practice. This school has a special conception of three jewels, its followers regard Nichiren, who is thought to be the incarnation of Bodhisattva Visista-Caritra in the Lotus Sutra, as the jewel of Buddha; the true Law represnted by the Great Gohonzo the jewel of dharma; Nikko and the priests in his lineage the jewel of samgha. In order to accommodate with the open religious environment of modern world, this school has attached importance to a preaching method through which the believers’ welfare is claimed. Besides, its criticisms of other religions are not so fierce as before.