This article examines the linear and nonlinear relationship between disaggregated public spending and green economic growth in China's case for 1993Q1-2018Q4. We used the principal component analysis approach to calculate the index of green economic growth and analyzed quarterly data through DOLS and FMOLS models. We found that public spending on economic affairs, public spending on health, inflation rate, and trade openness have a positive effect on green economic growth, while public spending on housing has a negative effect on green economic growth. Besides, the results showed a linear relationship between public spending on economic affairs and green growth; while a nonlinear relationship between public spending on housing and green economic growth, and between public spending on health and green economic growth. Lastly, the results showed that the 2015Q1 breakpoint has a negative and significant effect on green growth, while the 2008 financial crisis effect is not significant.