This research map organizes public transgender history in mainland China into seven intersecting paths—medicine, identity documents, work and courts, community infrastructure, public language, documentary regimes, and digital preservation—and introduces a historical conversion chain plus a source-switch method for reproducible reading.

Using hospital records, media narratives, administrative rules, community hotlines, litigation and surveys, and digital archives, this study reconstructs mainland China’s transgender public history through six documentary regimes and a reproducible source-card method.