Field observation and radio telemetry were used to study the home range and habitat use of red-bellied squirrels (Callosciurus erythraeus) in planted forest of Hongya County in Sichuan Province during March to August in 2009. The results indicated that the average home range size were 1. 90 ± 0. 59 hm² by minimum convex polygon method,1. 06 ± 0. 19 hm² by 95% fixed kernel method and 0. 16 ± 0. 03 hm² by 60% fixed kernel method. The male squirrels expanded their home range significantly during the peak courtship period. The favorite habitats of the squirrels were the places with steeper slope gradient,higher shrub and liana cover, close to resident of human and water source.