  In this paper, we prove the Hamilton-Tian conjecture for K\"ahler-Ricci flow
based on a recent work of Liu-Sz\'ekelyhidi on Tian's partical $C^0$-estimate
for poralized K\"ahler metrics with Ricci bounded below. The Yau-Tian-Donaldson
conjecture for the existence of K\"ahler-Einstein metrics on Fano manifolds
will be also discussed.
