The outer Galaxy provides a good opportunity to study star formation in an environment significantly different from that in the solar neighborhood including lower gas density and lower metallicity. However, star-forming regions in the outer Galaxy have never been comprehensively studied or catalogued because of the difficulties in detecting them at such large distance. We searched for star-forming regions with WISE MIR all-sky survey data and FCRAO CO outer Galaxy survey data. As a result, we successfully identified 711 new candidate star-forming regions in 240 molecular clouds up to Rg ~ 20 kpc, which enable statistical studies of star-formation activities up to the extreme outer Galaxy for the first time. Using the new identified star-forming regions, I will report the global properties of star-formation activities in the outer Galaxy.