Funakoshi, Y. JACoW Geneva, Switzerland 978-3-95450-187-8 10.18429/JACoW-eeFACT2016-MOOTH2 English 4-8 MOOTH2 ion MMI vacuum emittance detector Contribution to a conference proceedings 2017 2017-07 https://doi.org/10.18429/JACoW-eeFACT2016-MOOTH2 http://jacow.org/eefact2016/papers/mooth2.pdf After 5 years of upgrade work from KEKB, the Phase 1 beam commissioning of SuperKEKB started on Feb. 1st this year and finished at the end of June. In Phase 1, Belle-II detector and the final focus doublet (QCS) were not installed and no beam collision was performed. Missions of the commissioning in Phase 1 were startup of each hardware component, establishment of beam operation software tools, preparation of Belle-II detector, an optics study and tuning without QCS and the detector solenoid magnet and other machine studies. In this talk, achievements in the Phase 1 commissioning are summarized. Also a plan for the Phase 2 commissioning will be given.