Hydrogen energy has the advantages of clean and low-carbon compared with traditional fossil energy，and the advantages of stability compared with hydropower，photovoltaic and wind power. As a fuel，hydrogen could realize zero carbon emission or even net zero emission at the terminal of energy conversion. As a carrier，hydrogen could also link power grid，gas grid，and heat grid into a multi-energy complementary system for realizing efficient，stable，and flexible comprehensive utilizations of renewable energy. The present report based on the goal of Carbon Peaking and Carbon Neutrality，analyzed the effective paths for hydrogen energy to achieve deep carbon reduction in the typical high-carbon emission industries （such as power section，steel section，and transportation section），and pointed out the major obstacles faced by each industry in the development of hydrogen energy. Based on the current development situation and expected prospects，the report proposed that the development of hydrogen energy industry should focus on strengthening the coordinated development of industrial departments and regions，building a systematic and coordinated industrial development pattern，tackling key technical nodes （like green hydrogen production，hydrogen pipeline storage and transportation），improving industrial standards，and promoting the development of hydrogen energy industry in a way of balanced，coordinated，and orderly.