ABSTRACT The objective of the research are to describe the analytic philosophical thoughts of Ludwig Wittgenstein consisting of (1) the ontological aspect that includes the essence of a language reality, the essence of the world, the mean¬ing of name, formal concept, real concept, the limit of language, and picture theory. (2) The epistemological aspect that includes the essence of proposi¬tions, the essenc of the truth language expression, language logic, philo¬sophical method and grammatical investigations. (3) The axiological aspect that include the values contained in the expressions of a language and its function. (4) The relevance of the development of language philosophy. The result of the research show that Wittgenstein's thought...