The artist Pham Khanh Thanh is a painter pursuing landscape painting, especially on the theme of trees. It can be said that he has created a style of trees with style can not be confused with anyone else. He selects oil paintings of Vietnamese landscape paintings, with random effects on color, lines, rhythm, composition, his paintings mainly focus on the color of the tree. Besides, the surrounding details of life are described by Pham Khanh Thanh on the background color space to portray the real substance life. But, above all, the author’s feelings centered heavily on describing the color of the tree, which he blended cleverly the tones that he combined to create a multi-dimensional picture of color.