Here he is looking happy while taking part in a tree planting ceremony at the summit.
Really, he's so happy!
Why is Putin so happy? He definitely feels more welcome in China than in the West, where he faces criticism over the Kremlin's actions in Ukraine and the fallout of several rounds of sanctions.
Earlier this year, Putin and Xi signed a major 30-year gas deal after years and years of negotiations. The deal will see Russia truly pivot to Asia, rather than deal with the pesky criticisms coming from the U.S. and Europe.
Let's zoom in on that photo. Putin is practically bursting with joy as he chats with Xi. But wait, who's that behind him? Let's zoom out for a second.
It's President Barack Obama, looking none too happy.