Abstract
Grammar Induction is a machine learning process for learning grammar from corpora. This paper will discuss the process of grammar induction for Indonesian language corpora using genetic algorithm. The Grammar production rules will be modeled in the form of chromosomes. The fitness function is used to count how many sentences can be parsed. The data used are Indonesian fairy tales stories such as "Bawang Merah Bawang Putih" and "Malin Kundang". This paper describes the detailed explanations about the steps of each process carried out for natural language grammar problems.