This book provides a comprehensive research on the financial development characteristics of the Zhuhai-Macao city cluster in the integration of Guangdong, Hong Kong and Macao. Focusing on the positioning of Zhuhai and Macao in Outline Development Plan for the Guangdong-Hong Kong-Macao Greater Bay Area, the book examines the financial cooperation path of Zhuhai to support the synergistic development of Macao's special financial markets, industries and institutions. This cooperation path uses financial technology as a grip to achieve interconnection and facilitate the diversified financial integration of the two cities, providing a reference for the synergistic financial development of other city clusters.