South Korea is one of developed country in Asia which is one of the destinations for prospective migrant workers in Indonesia. The lack of human resources in South Korea made South Korea government looking for workers to run their industrial sector. However, the increasing amount of migrant workers in South Korea also rising the amount of overstaying migrant workers including from Indonesian workers. This undergraduate thesis aimed to analysis the factors that caused overstaying Indonesian workers in South Korea. There are a lot of Overstaying Indonesian migrant workers in South Korea who reluctant to come back home even after the work permit had expired. This is made them become illegal workers and decided to live in South Korea without any protection. The writer used ‘Push and Pull Theory’ by Everett S. Lee to analyze the factors that caused Indonesian Workers reluctant to come back.