This book analyzes the concept, theory, rules, and impact of the reform of the international monetary system and Crypto-SDRs and provides a feasibility analysis of the combination of blockchain technology and SDRs. It explores and summarizes the possibility of solving problems such as the inherent defects of the current international monetary system and creatively suggests that the birth of Crypto-SDR will have a positive impact on countries and industries and fields around the world, especially in anti-money laundering, cross-border asset recovery, international payments, banking, insurance, financial auditing, Fintech regulation, etc.