アブストラクト：
Revealing the nature of low-mass galaxies with strong emission lines is of importance to understand the early stage of galaxy formation and evolution. The detailed studies at high redshift, however, are not easy because of various observational limitations. Thus, it is important to examine similar galaxies at lower redshift in details. Thanks to its deep and wide imaging data, we are conducting a survey to search for strong emission line galaxies by using Subaru Hyper Suprime-Cam (HSC). We select candidates of strong emission line galaxies at up to z~0.8 with excesses of broad-band filters. In this talk, we present the recent progress of this project including follow-up spectroscopic observations.