Chinese catalogue records from the separate in house allegro have been migrated and integrated into the standard Bodleian library management system and can be discovered via SOLO. They can be searched in simplify or traditional Chinese Characters, or in pin yin.
Chinese allegro catalogue (beta): Chinese language collections
Use traditional characters and non-aggregated pinyin to search
Location of a book (藏館) with a shelfmark shows where a book is:
Alternatively use four corner catalogue (四角目錄).
Serica: Bodleian pre-modern collections of Chinese studies and a subset of the Chinese allegro catalogue
History and scope of the Chinese collections (available from Chinese Manuscripts & Rare Books subject guide)