For providing a reference on introduction and use of South Asia rice restorer lines resources，the combining ability analysis of yield trait was studied in rice restorer lines between China and South Asia by a NCⅡ mating design. 37 restorer lines from China and South Asia were used as male parents, and 3 CMS line,Gang46A,Lu98A,De-xiang074A were used as female parents, 111 hybrids were gained. The hybrids was planted in Lu-zhou city and De-yang city of Sichuan province in China respectively, and 8 yield traits was investigated and analyzed. The results shows: (1) Both general combining ability（GCA） and specific combining ability（SCA）were significant at 5% or 1% levels on 8 yield traits, and the additive effects were more important than non-additive effects. (2) The Yield traits were greatly influenced by restorer lines than by fmale sterile lines.(3) There are different between China and south Asia restorer lines on yield trait GCA, and India and Bengal restorer lines has a better GCA on tiller number than Chinese resource，Chinese rice restorer lines is better than South Asia resource on other yield traits GCA..