通过对水彩画表现力度的分析，介绍一些世界上在这方面卓有成效的画家及作品，使之既从历史传统的长河里寻找借鉴，又从时代的发展中不断进取、开拓、进行新的创造．对水彩艺术表现力度所具有的宽泛性的研究，为兴盛和发展这门艺术提供了广阔的前景． Through analyzing the expressiveness of watercolors, this paper introduces some painters and works that have made fruitful achievements in this field in the world. It not only draws lessons from the long history of the history and tradition, but also makes continuous progress, development and new creation from the development of the times. The research on the broadness of the expression of watercolor art provides a bright prospect for the prosperity and development of this art.