Grant management is critical because it concerns whether a funded project can be completed and generate strong impacts successfully. Grant management is also complex because it involves knowledge in various disciplines, such as law, finance, methodology, human resources, management, and administration. However, it has not received adequate professional attention and has long been neglected in grant research and grant practice. Given the limited knowledge shown by the new grant writers and the limited literature on grant management, this chapter uses (1) “grant management” as an umbrella term to refer to research management by researchers, grant administration by institutions, and grant management by funders and (2) various types of available materials (e.g., funders’ documents and practical guidelines) along with typical published empirical articles to discuss grant management. The realistic intellectual goal for this chapter is to better understand the importance and complexity of grant management.