How to Change D-4 to D-2 Visa in Korea (Requirements & Rules)

Official Immigration Guide

The Complete Guide to Studying in Korea: D-2 & D-4 Visas

A full breakdown of legal definitions, eligible programs, and step-by-step procedures according to the Korean Immigration Act.

⚠️ Case Study: Anna’s Expensive Mistake

Anna dreamed of experiencing life in Seoul and enrolled in a 10-week Korean language course. Assuming she was an "international student," she confidently applied for the D-2 Student Visa.

The result? Instant rejection. She lost her application fees and her flight ticket had to be canceled. Why? Because the D-2 visa is strictly for Degree Programs. For a language course, Anna needed a D-4 General Trainee Visa. The Korean Immigration system does not forgive simple mistakes. Let’s explore the exact legal requirements so this doesn't happen to you.

Part 1: Legal Definition & Visa Types

▶ What is a "Foreign Student" in Korea?

According to Article 19-4 (1) of the Immigration Act, a "foreign student" refers to a foreigner who possesses a visa status allowing them to study or train in South Korea.

▶ Eligible Visa Categories (D-2 vs. D-4)

Based on Article 10 of the Immigration Act, you can be granted one of the following statuses depending on your educational goal:

D-2 (Study Visa)

For individuals intending to receive education in a regular degree program (Bachelor's, Master's, Ph.D.) or engage in specific research at an educational or academic research institution above the junior college level.

D-4 (General Trainee Visa)

For individuals intending to receive education, training, or engage in research at an educational institution, enterprise, or organization that meets the requirements set by the Minister of Justice.
*Exception: Those who receive compensation exceeding living expenses from the training institution, or those eligible for D-2 (Study) or D-3 (Technical Training) are excluded.

Part 2: The Step-by-Step Procedure

Step 1: Preparation & Admission Requirements

To enter a Regular Degree Program (not a language or short-term course), you must strictly meet the university's admission criteria:

• Education Requirement: You must prove you have completed at least 12 years of formal education (elementary, middle, and high school) in your home country.
• Language Requirement: You must meet the minimum score requirements for the Test of Proficiency in Korean (TOPIK) or English proficiency tests, as demanded by the specific university.

Step 2: Entry & Visa Issuance

Once admitted, apply for a D-2, D-4, or C-3 (Short-term Visit) visa at the Korean diplomatic mission in your country.

💡 Visa Exemption Notice: Students from countries with a visa-waiver agreement with Korea who wish to enroll in a short-term Korean language course (generally under 90 days) may enter without a visa.

The 90-Day Rule: After entering Korea, you must visit your local Immigration Office within 90 days to register your address and receive your Alien Registration Card (ARC), which acts as your official Korean ID.

Step 3: Life in Korea & Support

Adjusting to housing, banking, public transport, and medical facilities can be challenging. For assistance, universities have dedicated staff for international students. Additionally, the Korean government operates the Study in Korea system and the Immigration Contact Center (Call 1345 / HiKorea) to support your stay.

Step 4: After Graduation

When your studies are complete, you can return home, pursue higher education, or find employment in Korea. If you stay to work, you must legally change your current D-2/D-4 visa to a proper Work Visa. If pursuing higher education, you must extend or change your visa status accordingly.

💬 Q&A: Types of Educational Programs

"I want to study in Korea. What specific educational programs can foreign students enroll in?"

1. Regular Course (정규과정)

This involves completing the exact same curriculum as Korean students. You must meet the legal academic requirements (e.g., recognized high school graduation).

🚫 Crucial Restriction: Foreign students are NOT permitted to enroll in Cyber Universities, Open Universities, or Distance-learning Universities for visa purposes due to their remote learning nature.

2. Short-Term Course (단기과정)

This involves completing only a part of a regular course (usually 1-2 semesters or a vacation/summer term). Most students enter this program as Exchange Students through an academic exchange agreement between their home university and a Korean "sister university," which often provides benefits regarding admissions, credits, and scholarships.

3. Korean Language Course (한국어 연수과정)

A course strictly designed for foreigners to acquire the Korean language. It is generally divided into long-term courses (10 weeks or more) and short-term courses (4 weeks or less).

Securing a student visa is the most critical step of your Korean journey. Ensure your documents meet the exact legal requirements to avoid rejections and secure your future in South Korea.