Ananchenko lahir pada tahun 1967. Dia memiliki kewarganegaraan Ukraina dan pendidikan tinggi. Dia adalah direktur cabang perusahaan milik oligarki [[Serhiy Kurchenko]] di kota Krivets ([[Oblast Kursk]], Rusia),<ref>{{Cite web |url=http://www.list-org.com/company/1849082 |title=Организация ФИЛИАЛ ЗАО "ВТОРШАХТМЕТ-1" |website=list-org.com |language=ru |accessdate=2018-10-21}}</ref> serta penasehatnya.<ref>{{Cite news |url=https://narodna-pravda.ua/2018/10/18/bojovyky-dnr-predstavyly-novogo-vatazhka-pov-yazanyj-z-ukrayinskym-oligarhom/ |title=Бойовики 'ДНР' представили нового ватажка: пов'язаний з українським олігархом |date=October 18, 2018 |website=narodna-pravda.ua |language=uk |accessdate=2018-10-21}}</ref> Sejak 2013, ia tinggal di Ukraina timur, di mana pada 2014 ia terlibat dalam pemberontakan separatis di Donbass. Pada 7 September 2018, penjabat Kepala Republik Rakyat Donetsk, [[Denis Pushilin]], mengangkatnya sebagai wakil perdana menteri.<ref>{{Cite web |url=http://smdnr.ru/o-sovete-ministrov/ |title=О Совете Министров |website=smdnr.ru |language=ru |accessdate=2018-10-21 |archive-url=https://web.archive.org/web/20181021232426/http://smdnr.ru/o-sovete-ministrov/ |archive-date=2018-10-21 |url-status=dead}}</ref><!-- HIDDEN, MAKES NO SENSE: After resignation [[Denis Pushilin]] 18 October 2018 temporarily took over the prime minister's seat (the deputy prime minister was the former mer [[Donieck]] and [[Igor Martynow]]) --><ref>{{cite news|url=http://politinformer.ru/novosti-dnr-i-lnr/%D0%BF%D1%80%D0%B5%D0%BC%D1%8C%D0%B5%D1%80-%D0%BC%D0%B8%D0%BD%D0%B8%D1%81%D1%82%D1%80%D0%BE%D0%BC-%D0%B4%D0%BD%D1%80-%D0%BD%D0%B0%D0%B7%D0%BD%D0%B0%D1%87%D0%B5%D0%BD-%D0%B0%D0%BB%D0%B5%D0%BA%D1%81|title=Премьер-министром ДНР назначен Александр Ананченко|date=October 18, 2018|website=politinformer.ru|language=ru|accessdate=2018-10-21|archive-date=2018-10-22|archive-url=https://web.archive.org/web/20181022033508/http://politinformer.ru/novosti-dnr-i-lnr/%d0%bf%d1%80%d0%b5%d0%bc%d1%8c%d0%b5%d1%80-%d0%bc%d0%b8%d0%bd%d0%b8%d1%81%d1%82%d1%80%d0%be%d0%bc-%d0%b4%d0%bd%d1%80-%d0%bd%d0%b0%d0%b7%d0%bd%d0%b0%d1%87%d0%b5%d0%bd-%d0%b0%d0%bb%d0%b5%d0%ba%d1%81|dead-url=yes}}</ref>
