The English-language China Daily said the relocations were aimed at preventing pollution from adjacent communities contaminating the reservoir, and at protecting residents from possible seismic dangers.
The report quoted government officials in the huge municipality of Chongqing in southwestern China. The dam, the world’s largest hydroelectric project, is located in central Hubei province, but most of its reservoir is in Chongqing.
State media said in September that 1.27 million people had already been relocated to make way for the project.
Chinese officials have previously said 1.4 million people were to be subject to forced relocation from areas now submerged or due to be submerged by the reservoir.