The East Asian nation has also written off debt for poorer African nations.
Speaking at the opening ceremony of the 2018 Beijing Summit of the Forum on China-Africa Cooperation, Xi said financing will be provided in the form of government assistance as well as investment and financing by financial institutions and companies.
He also stated that government debt from China’s interest free loans due by the end of 2018 will be written off for indebted poor African countries as well as for developing nations in the continent’s interior and small island nations.
China will carry out 50 projects on green development and environmental protection in Africa, focusing on fighting climate change, desertification and wildlife protection.
The new $60bn will include $15bn of aid, interest-free loans and concessional loans, a credit line of $20bn, a $10bn special fund for China-Africa development, and a $5bn special fund for imports from Africa, Xi said.
Chinese companies will be encouraged to invest no less than $10bn in the continent in the next three years.
Economists and other international financial institutions worry that Chinese loans are burying some countries under massive debt.
The East Asian nation has, however, denied engaging in "debt trap" diplomacy adding that it continues lending to Africa on the grounds that the continent still needs debt-funded infrastructure development.