The Chinese champions had to fight tough weather conditions, including snow, and a determined Kawasakai outfit who were hoping for a win in front of home fans.
But Beijing, thanks to a goal from Australian Joel Griffiths and two from substitute Wang Changqing, got the job done and recorded their second win from two group stage outings.
"It was tough weather conditions to play in, but both teams fought hard and Kawasaki did well. But they didn't use the chances they had well and we made the most of the chances we had. I'm grateful to our players," said Hong.
"We haven't played in snow before. And not only our Brazilian player but also Kawasaki's Renatinho found it hard to control the ball on the snowy pitch.
"I told our players several things, not to play too defensively, and that our attacking players should come forward as much as they could to score a second goal.
"After it started snowing heavier in the second half, I told them to defend solidly, attack with more dribbling, and our players did well with what I had told them to do."