Large-scale urbanization not only changes the landscape pattern of a city and its surrounding areas, but also has a significant impact on the structure and services of the urban forest ecosystem. The spatial distribution and ecological process of urban forest have already become hot spots of urban forestry research. This paper clarifies the concepts of landscape pattern and processes of urban forest. Our review of literature in this field reveals several areas of high likelihood to be the key research frontiers of urban forest landscape study in the near future. These prospective new frontiers are the ecological processes of urban forest system such as material cycling and energy flow, social driving force for landscape pattern evolution of urban forest, urban forest planning based on ecosystem services, forest landscape pattern and process in peri-urban areas, pattern and process module design of urban forest based on spatially explicit landscape models.