The rapid and outward development of Guangdong-Hong Kong-Macao Greater Bay Area has imposed both internal and external opportunities and challenges for its regional leisure and tourism. The ecotourism development of the Greater Bay Area has inherent advantages，with abundant ecological resources and obvious advantages in humanities and geography. At the same time，from the perspective of the current industrial situation，the tourism consumption demand in this region is strong，and a series of eco-tourism product brands and the basic spatial pattern of eco-tourism development have been formed. Based on the analysis of existing problems and challenges，this research proposes three development suggestions：First，optimize the ecological space governance structure，long-term planning and supporting policies；second，create an ecological atmosphere that integrates internationalization and localization，and create a distinctive eco-tourism brand；third，optimize the construction of tourist destinations and promote tourism integration.