The Sacred Heart Cathedral in Changchun is the principal Catholic church in the city, a European Gothic Revival building that stands in notable contrast to the surrounding urban fabric. Built by French Jesuit missionaries in the early twentieth century, it is one of the few buildings in Changchun from before the Manchukuo period that survives with its original character intact.
The interior follows a standard Gothic plan with pointed arches, stained glass, and a nave oriented toward the main altar. Mass is said in Chinese. The congregation is active and the church is open for visitors outside service times. For anyone walking the Manchukuo-era architectural sites, the cathedral adds a dimension — it represents the foreign presence in pre-colonial Manchuria that predated Japanese control, a reminder that the region's encounter with the outside world began before the South Manchurian Railway.