After the retirement, Morioka started coaching career at Kyoto Sanga FC in 2009. He served as an assistant coach for top team and manager for youth team until 2016 excluding 2014 he moved to Sagawa Printing Kyoto and served as an assistant coach. In 2017, he moved to J3 League club Gainare Tottori and became a manager. However Gainare results were bad and finished at the bottom place of 17 clubs. He was sacked in June 2018 when the club was at the 7th place.