Why did the capital of Jilin province move from Jilin city to Changchun in 1954?

In 1954, the capital of Jilin province was moved from Jilin city to Changchun as part of a broader administrative reorganization of the region.1

During that same year, the province was significantly enlarged through the annexation of territory from northern Liaoning and a portion of the steppe district near Baicheng in Heilongjiang. This administrative shift coincided with the abolition of the regional government, after which the province came under the direct administration of the central government. While Jilin city had served as the provincial capital during the period of the Japanese puppet state of Manchukuo and the subsequent years, Changchun had already been developed as a major administrative and political center during the 1930s. Following the establishment of communist rule, Changchun further evolved into a primary site for heavy industrial expansion, particularly in the automotive and engineering sectors, solidifying its role as the provincial capital.12