A South Korea work visa is an official permit that allows foreign nationals to live and work legally in South Korea for a specific job and employer. It is issued based on the nature of employment, skill level, and qualifications of the applicant. South Korea offers multiple work visa categories, such as professional, technical, teaching, and labour-based visas. Most work visas require a valid job offer from a Korean employer and approval from immigration authorities. The visa is usually issued for a fixed duration and can be renewed if employment continues.