Background/Objectives: According to the National Statistical Office's August 2018 「Survey of the economically active population and additional surveys by type of work」, the proportion of irregular workers among all wage earners stands at 32.9 percent. As such, irregular workers play a certain role in various sectors of the corporate organization, but they are a source of conflict within the organization due to treatment inequality and discrimination. Such conflicts within corporate organizations are further cited as causing socioeconomic problems. In this study, we intend to identify the types of organizational culture that affect the job satisfaction and organizational commitment of irregular workers to help establish a desirable organizational culture, mitigate negative conflicts within the organization and improve organizational performance.