Changes stem from the fourth industrial revolution in form of disruptive innovation are wide-ranging and inevitable even for public sector. Governments now face pressures more than ever to adapt themselves to new technologies in order to avoid being obsolete. In the meantime, Financial sector is among the most disrupted and is rapidly evolving, whereas recent innovation known as Fintech emerged to disrupt traditional banking sector and its service to citizens. Accordingly, Thai government has endeavored and adapted into this change by announcing the national e-payment system to facilitate digital banking and improve efficiency as well as timeliness in financial transaction between government and citizens. However, as technology is fast changing, the critical question should be directed to look for the future vision for Thailand national e-payment system. This paper seeks to answer this question by considering current framework of Thai national e-payment and insights from country where Fintech is thriving successfully in perspective of digital government. Thailand national e-payment system is then analyzed in terms of strengths, weaknesses, opportunities and threats. Consequently, in order to promote successful digital government within the context of fourth industrialization, Thai government must improve efficiency and effectiveness of national e-payment system by utilizing more Fintech in government-citizen financial transaction as well as providing more knowledge of Fintech and national e-payment across various groups of citizens.