Miàoshēng 妙生 was a Northern Sòng Vinaya monk and Pure Land devotee. Native of Huìjī 會稽 (modern Shàoxīng); lifedates not preserved. He was a student of Vinaya and a practitioner of the Pure Land, residing at Cháoshān Xiàngwù 潮山象塢 in the company of Dàtōng Shànběn 大通善本 of the Chán school. He died in samādhi: one evening, while gathering his disciples to recite the Smaller Sukhāvatīvyūha (Ēmítuó jīng 阿彌陀經), he sat upright on the couch, burned incense, joined his palms, and departed in tranquillity (tàrán ér huà 嗒然而化).
His two recorded works are both Vinaya treatises responding to Yuánzhào’s (元照) Fózhì bǐqiū liùwù tú (KR6k0186, T1900): the Sānyī xiǎnzhèng tú 三衣顯正圖 (X1103, one juan) and the Fózhì liùwù tú biàné 佛制六物圖辯訛 (KR6k0187, X1102, one juan). The latter explicitly refutes errors he found in Yuánzhào’s work — a rare instance of public Vinaya disputation between contemporary Sòng commentators.
Sources: Fózǔ tǒngjì 佛祖統紀 j. 27; Xīnxiū gāosēng zhuàn sìjí 新修高僧傳四集 j. 27; Jìngtǔ shèngxián lù 淨土聖賢錄 j. 3; DILA Buddhist Person Authority A000462.