Late-Southern-Sòng 南宋 Daoist scholar, active mid-13th century. Zì Yǒng qì 永期; hào Tài xiá lǎo rén 太霞老人 (“Old Man of the Great Roseate Cloud”). Author of two complementary subcommentaries on Chén Jǐngyuán’s 陳景元 DZ 714 Dàodé zhēn jīng cáng shì zuǎn wēi piān:
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[[KR5c0104|Dàodé zhēn jīng cáng shì zuǎn wēi piān kāi tí kē wén shū]] 道德真經藏室纂微篇開題科文疏 (DZ 715, 5 juàn, prefaces 1249) — an analytical-mythological elaboration of Chén Jǐngyuán’s kāi tí 開題 (KR5c0102), with an inset biography of Chén Jǐngyuán.
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[[KR5c0105|Dàodé zhēn jīng cáng shì zuǎn wēi shǒu chāo]] 道德真經藏室纂微手鈔 (DZ 716, 2 juàn) — a source-critical apparatus identifying the classical quotations used by Chén Jǐngyuán in his commentary. Only the second half (the Dé jīng) survives; the first half is missing.
Dating. Active 1249 (the preface-date of DZ 715). No lifedates or further biographical details are recorded. No CBDB record identified.
Regional affiliation. Probably active in Zhè jiāng 浙江 — the DZ 715 preface by Lǐ Tīng 李霆 of Fù yáng 富陽 (Zhè jiāng) suggests Xuē Zhìxuán’s circle was in that region. However, no firm identification of Xuē Zhìxuán’s own native place or residence is preserved.
Scholarly role. Xuē Zhìxuán was essentially a late-Southern-Sòng transmitter of the Chén Jǐngyuán tradition — the Northern-Sòng Daoist scholarly heritage associated with the Chén Tuán–Zhāng Wúmèng lineage. His subcommentary work made Chén Jǐngyuán’s 1072 commentary accessible to a wider mid-13th-century readership and preserved valuable biographical material about Chén Jǐngyuán himself.
No other works by Xuē Zhìxuán are attested. No CBDB record identified.