As a national strategy of land ecological restoration, how to identify priority ecological restoration space and improve regional ecological service function is the current research hotspot and difficulty. This paper, taking Guangzhou as an example, aimed to identify ecological restoration space by evaluating natural resources assets to seek a new tool of territory planning. We found that:(1) the value of natural resources assets in Guangzhou was about 833.4 billion yuan in 2009, compared with 1202.5 billion yuan in 2019; (2) The value of natural assets has increased, but excluding the factors of price rise, the value of regulation and support services has declined; (3) We put forward the application of the evaluation of natural resources assets in space ecological restoration of the territorial spatial planning, including ecological importance area identification, ecological space major function zoning, and key points of ecological governance identification. Finally, this paper discussed how to improve the rationality and accuracy of natural resources assets evaluation, the adaptability of natural resources assets evaluation methods in different scale of land and space ecological restoration planning, and how to promote the implementation of ecological restoration planning based on natural assets evaluation.