Emergency workers have built 2,458 makeshift houses and 34,000 tents for the displaced people, it said.
The government has already ordered many survivors to move several times because of potential danger from damaged homes, aftershocks and possible flooding from "quake lakes" formed by the massive temblor.
The magnitude 8 quake had struck Sichuan province on May 12 with Wenchuan as the epicentre, where alone the temblor killed 15,941 people and left 7662 others missing.
Tens of thousands of people have been evacuated to safer places due to floods caused by torrential rains which have claimed 176 lives so far and damaged vast stretches of crop land in the last couple of days.