| This study analyzed the ontological language of watercolour via the integrants of watercolour-painting. Those integrants include the tools and materials, skills and forms, ideals and spirits of aesthetics and so on.It found invariability is one of the painting-language's attribute as variability.The research combed the key elements of watercolour for dialectical thinking, such as induction or deduction, analysis or synthesis, abstract or concrete and so on, and infer the relationship between essence and phenomenon of watercolour by analysing the variable factors and the eternal factors in the ontological language, then confirm the invariability and variability attribute in watercolour painting.The first chapter analyze watercolor on connotation and extension, and distinguished watercolour-paints on water-borne paints. Chapter II outlined the development of watercolours ontology language. Chapter III narrated why the ontology language has a invariable attribution. Chapter IV explore the body language has variability. The practical value of invariability and variability in China's watercolour are set out in chapter V. this is the purpose of the whole research.Respecting the stability of watercolour can reserve the unique aesthetic value of watercolor painting. Consequently to keep the aesthetic visual-resource to human, yet keep changing is inevitable requirement for watercolour's development. Although invariability is relatively while varibility eternally, it can be found the inevitabile trend of watercolour's development between the two attributes. |