The purpose of this study is to critically analyze existing practices in legislative activities, which have focused on quantitative performance. To accomplish this purpose, various problems caused by massive numbers of bills are shown through cross-country comparisons. Contrary to the popular belief, our National Assembly's bill proposal rate is at least twice that of advanced parliamentary democracies, and therefore a new approach is needed when it comes to the future of our National Assembly. This is because it is impossible to review bills responsibly. Even if lawmakers were to spend four hours a day 300 days of the year reviewing bills, they would only have 10 minutes per bill. Nevertheless, the number of bills passed is at least 21 times (compared to the US) to 172 times more (compared to the UK), so there is a need to enhance the quality of legislation as well as empowering the National Assembly. In conclusion, this study calls for quality over quantity and sufficient deliberation and negotiation in legislation.