This book is one of the "Financial Support for High-Quality Economic Development Book Series". The book mainly studies the impact of intensified competition among banks on macroeconomic and micro-industry development. The book consists of 6 chapters in total. Chapter 1 is about the evolution of the competitive landscape of China's banking industry. It mainly introduces the evolution of the competitive landscape of my country's banking industry since the reform and opening up, especially since China's accession to the WTO and the gradual elimination of geographical restrictions on foreign banks operating RMB business and restrictions on the customers of RMB business. Chapter 2 is about the impact of opening up to the outside world on the layout of bank branches, which is an in-depth discussion of the issues in Chapter 1. Chapter 3 is about bank competition and financing constraints of small and medium-sized enterprises, Chapter 4 is about bank competition and corporate tax avoidance, and Chapter 5 is about bank competition and industrial structure. They study the micro-level impact of bank competition from three different perspectives. Chapter 6 is summary and outlook.