It focuses on ‘Kaesong Industrial Region labor regulations’ and ‘Rason economic trade zone labor regulations’ which enacted in 2003 and 2013 respectively. According to the analysis, the sustainable parts of the Labor Welfare laws of the SEZs are as follows. First, North Korea tends to maintain the basic framework of labor welfare laws based on the existing ones. Second, there was no remarkable change in the welfare benefits, existing previous benefit system without showing any new cash benefits or in-cash benefits. Third, in this context, it did not show institution to offer new program beyond the existing labor welfare regulations. Fourth, payer of ‘Social Welfare Policy Fund’ and ‘Social Welfare Fund’ is the same as before. Fifth, the contribution rate of social security is also the same as before. On the other hand, the changes are as follows. First, the quantitative increase and qualitative development of the statutes were observed, and the expression of the statute was specified and modernized. Second, the wages for overtime work has increased significantly. Third, it observed to protect workers legally.