JILAF has been implementing the Invitation Program ever since its establishment. The participants, promising junior trade union leaders mainly from developing countries, are invited to Japan and given an opportunity to study the Japanese labour situation, labour movement, productivity movement, and other topics,thereby deepening mutual understanding between Japan and their countries. In addition, teams are organized by certaine themes, and symposiums and lectures are held according to these themes so that members can acquire new knowledge.

Each time a team of around 10 participants is invited to Japan for the program, one or two people from each of several countries in a certain region. About 12 teams are invited every year, so the annual number of participants is about 120 persons. As of March 2010, the number of participants since JILAF's founding is 2,427 persons from 126 countries, 3 territories, and 6 international organizations.

During their stay of about two weeks in Japan, participants deepen their understanding of employment stability policies in Japan and also experience Japanese culture and lifestyle. The program seeks to give them a realistic picture of life in Japan.