2018 is the first year of Putin's fourth term in office. During this year， Putin won the election with an overwhelmingly majority of votes， the Russian economy was moving towards slow growth， people's livelihood reforms were opened， the Western economic sanctions and the Russian-US struggle both continued. Hence， 2018 is quite challenging to the old “new” president. Every year， Putin explains his ruling ideas to the domestic people and the international community through four large-scale public events：the “Direct Connection with Putin” program， the Valday Conference， the President's Annual Press Conference and the State of Union Address. Therefore， by analyzing Putin's public speech in these four events， we can understand Putin's important thoughts in the political， economic and diplomatic fields.