The ”privatization of social welfare” has been adopted as a global trend which tries to meet all kinds of policy expectations. Taiwan government has adopted the ”privatization of social welfare” as a take-for-granted policy. Meanwhile, dispute and suspicions on privatzation has been growing. This article tries to review the theories and practices of ”privatization of social welfare” , and also tries to find the romantic myths in it. It is suggested that policy-maker should realize the dilemmas and limitation of privatization, and rethink that ”Is it the only way to reach social welfare's goal?”