The Yellow River Delta wetland area is one of the key areas for the development and protection of the Yellow River Basin and is an important part of maintaining the health of the Yellow River, with high biodiversity research value, which is of great significance for the ecological protection and high-quality development of the Yellow River Basin. The Yellow River Estuary region has become a candidate area for national park designation, but the habitat quality in this area has significantly changed due to sediment variations and human activities. The InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) model was used to evaluate the temporal and spatial changes in terrestrial habitat quality in the construction area of the Yellow River Estuary National Park from 1990 to 2020. The research results show that the average habitat quality of the terrestrial area of the Yellow River Estuary National Park construction area improved from 0.635 in 1990 to 0.648 in 2020, and the areas with improved habitat quality accounted for 85.83% of the study area. However, the percentage of areas with very high habitat quality decreased from 19.84% in 1990 to 0.87% in 2020, and the area of high-value aggregation also decreased from 7.23% to 0.29%. The rate of change in habitat quality from 1990 to 2020 ranged from -0.71 to 0.70, with areas of reduced habitat quality concentrated near the coastal zone and along the Yellow River, and areas of increased habitat quality concentrated in and around residential areas. The evolution of the Yellow River Delta area is positively correlated with the habitat quality, and the habitat quality in the national park construction area was higher than in other areas. This paper also proposes suggestions for improving the habitat quality of the Yellow River Estuary National Park construction area including: strengthening the top-level design of integrated protection and restoration, considering the internal and external effects of ecological protection and restoration measures, and implementing measures in different areas; continuously promote scientific research and exploration, strengthen ecological environment monitoring and assessment, and research and develop technologies to enhance the biodiversity of saline and alkaline land; international advanced concepts, management strategies and technological experience could be utilized to enhance sustainability in the planning and implementation of ecological protection and restoration measures. These findings offer valuable insights into the integrated ecological protection and restoration of the Yellow River Estuary National Park construction area and the Yellow River Delta region in which it is located.