To date, the process of implementing the global Sustainable Development Goals （SDGs） and global climate change mitigation and adaptation obligations has been largely decoupling in most countries. This creates administrative duplication, costs, and hinders the development of effective problem solving. Against this background, we show the present state of research on policy integration and integrated policymaking. Following the research results of Bauer et al. （2021） and Teebken et al. （2021）, this note briefly summarizes different understandings of policy integration and detailed criteria for evaluating policy integration from different　academic perspectives. Implementing an interactive agenda requires political　attention and institutional competence to address the interactions and complexity　of each, understand policies at a national level, and translation. In this note, we will　introduce the basic concept of what integration practice looks like, and focusing on　the interaction between the 2030 Agenda and the Paris Agreement.