We propose a green microfluidic electrogenerated chemiluminescence (ECL) device using 9,10-diphenylanthracene (DPA), which is one of the most studied deep-blue ECL material, as a host material. The ECL solution was prepared by dissolving DPA in an organic solvent along with green guest and assist dopant materials. 5,12-Dibutyl-1,3,8,10-tetramethylquinacridone (TMDBQA) was used as the gust, while 4,4'-bis[4-(diphenylamino)- styryl]biphenyl (BDAVBi) was used as the assist dopant. The microfluidic device with the prepared solution exhibited bright green emission. The obtained ECL spectrum was found to be almost identical to the photoluminescence spectrum of TMDBQA, and no significant contributions from DPA and BDAVBi were observed in the spectrum. We expect that the DPA host solution is promising for the fabrication of highly luminescent ECL devices.