代国
(?
220年～
277年)
拓跋力微（174年－277年），约当中国三国时期至西晋初年的索头部鲜卑族领袖，220年至277年在位，是南北朝时期北魏皇帝的先祖。其父为前任首领拓跋诘汾，其兄为十六国时期南凉国的先祖秃发匹孤。
《魏书·序记》记载力微系诘汾与天女所生，颇具神话色彩。诘汾去世后，力微继其位，时在220年。继位之初，拓跋部所属的西部鲜卑内乱，相互攻伐，部众离散，因此力微投靠“没鹿回部”酋长窦宾。窦宾赏识力微，欲分封国土之半予力微，力微不接受，窦宾因此将女儿嫁给力微。力微又请求率领所部北居长川，十数年后，因治理有方，旧有部众都来归附。
248年，窦宾去世后，其子阴谋作乱，力微杀之，吞并其部众，各酋长首领皆服从力微，史载当时力微的势力“控弦上马二十余万”。258年，再南迁至盛乐（今中国内蒙古和林格尔北），召集诸部酋长，远近莫不畏服。261年，派其子拓跋沙漠汗入曹魏为质子。
277年，因西晋幽州刺史卫瓘的计策，力微听信各部酋长的谗言，使得沙漠汗在力微的默许下被各部酋长所杀。卫瓘又设计使各部酋长离散，力微因此忧愁而死，史载其享年一百零四岁。子拓跋悉鹿继立。
北魏道武帝拓跋圭称帝时，被追谥为神元皇帝，庙号为始祖。
"Wei Shu sequence in mind," written with little power systems interrogate Fen-day birth, rather myth. It's long Fen after the death of little power, following its position in 220 years time. To the throne at the beginning, the Ministry of the western Tuoba Xianbei civil strife, mutual attack the, the Department of Public discrete, so little power in relying on "no deer Mikurube" Bin Sheikh sinus. Bin appreciated sinus power in an attempt to force semi-feudal land of micro-, micro-power not to accept, sinus Bin so little power to daughters. Micro Power has requested led his troops north Icho Sichuan, more than a decade later, due to well-governed, the old department have to join themselves to the public.
Wei Tao Wu Di Tuo Bagui emperor, he was chasing posthumous title of God Emperor Yuan, posthumous names of the ancestor.