The average salary of national university teacher is far below the level prescribed by the remuneration guideline for public servants. We demonstrated this hypothesis in terms of life-time income. The main results are as follows. The average annual salary of national university teacher is less than that of general civil servant with his equivalent rank. The reason is summarized as follows. First, the basic salary of general civil servant increases with his promotion as well as public service period. On the other hand, the salary of national university teacher increases with only his public service period. Second, the performance salary baseline of equivalent public officer is bigger than that of national university teacher by 2~3 million won. Third, general civil servant receives allowances additionally. Specifically, general civil servants are paid rank allowances. Also, senior civil servants above rank 4 are paid management allowances. Fourth, the gap of statutory salaries causes the difference of pension. These results show that the average salary level of national university teacher is below the level prescribed by laws and guideline. Therefore, we suggest policy alternatives to resolve these gaps. First, gaps of basic salary and performance based salary should be resolved by increasing their base amounts. Second, gaps of allowances should be resolved by paying teaching allowance and research allowance that are the statutory allowance for public institute teachers. Third, the elimination of the above statutory salary gaps naturally resolves the pension gap between general civil servants and national university teachers.