[Objective] The problems of high salinity, low nutrient and poor soil structure in the coastal saline-alkali area of Shandong province seriously affect the development of agricultural production. Therefore, the effective development and utilization of the soils in this region are of great importance to its agricultural production and income.[Method] In this study, the four land-use types (wasteland, grassland, cultivated land and forest land) in Kenli County of Dongying City were taken as the research objects, and the effects of different land-use types on the basic physical and chemical properties and aggregate stability of coastal saline-alkali soils were evaluated.[Result] The results showed that (i) the electrical conductivity (EC) and water-soluble K⁺ and Na⁺ contents in wasteland > cultivated land > grassland > forest land, with EC and Na⁺ content of wasteland being significantly higher than those from other sampling plots; (ii) the total nitrogen (N) and total organic carbon content (SOC) of the soils in forest land > grassland > cultivated land > wasteland, with SOC in the 0.25~2 mm water-stable aggregates being the highest; (iii) the mechanical stability mean weight diameter (MWD) and the mechanical stability aggregate content of > 0.25 mm particle diameter (R_0.25) were significantly lower in forest land than those of other sampling plots; (iv) the water stability mean weight diameter (WMWD) and the water stability aggregate content of > 0.25 mm particle size (WR_0.25) in wasteland were significantly lower than those in other sampling plots; and (v) the percentage of aggregate destruction (PAD) in wasteland > cultivated land > grassland > forest land. Additionally, results of the surface and internal scanning electron microscopy (SEM) of the 2 mm water-stable aggregates in grassland, cultivated land and forest land showed relatively obvious particles, pores, and adhesive materials. Furthermore, the Pearson correlation analysis showed that mechanical composition was significantly correlated with MWD and R_0.25 while PAD was significantly correlated with soil water soluble Na⁺ content and SOC of 0.25~2 mm water-stable aggregate soil.[Conclusion] Different land-use types have different effects on soil physical, chemical, and mechanical properties. The grassland and forest land use types have significant ameliorating effects on the physical and chemical properties of coastal saline soil while forest land use has higher carbon reserves and aggregate water stability, but lower mechanical stability. The results of this study can provide references for the rational planning and sustainable development of land use in the coastal saline-alkali area.