The invention discloses a panel assembly. The panel assembly is used for an air conditioner; the panel assembly comprises a panel, a wind guide strip and a driving part. A round hole is formed in the panel. The wind guide strip is arc-shaped; the wind guide strip is arranged in the round hole; an arc-shaped wind outlet channel is commonly formed by the wind guide strip and a hole wall of the round hole. The driving part is arranged on the panel; the driving part is connected with the wind guide strip and is used for driving the wind guide strip to move along the axis direction of the round hole, so that a wind outlet angle of the wind outlet channel is changed. The invention further discloses the air conditioner. In the panel assembly disclosed by the invention, the arc-shaped wind outlet channel is commonly formed by the wind guide strip and the hole wall of the round hole, and the air conditioner applying the panel assembly can realize a wind feeding angle which is greater than a square air outlet; meanwhile, the driving part drives the wind guide strip to move along the axis direction of the round hole, and the wind outlet angle of the wind outlet channel can be changed, so that the air outlet effect of the air conditioner is relatively good.