<![CDATA[Ultisol is an old soil with a dense argillic/illuviation horizon, intense leaching, a thin top layer, low fertility, and degradation. Ultisol soils are commonly found in West Kalimantan and generally have limited soil physical properties. Differences in slope classes and land use also play a role in determining soil physical properties. This study aims to analyze the comparison of Ultisol soil physical properties at different slope classes (8-15% and 15-30%) and land use (oil palm and secondary forest) in Amboyo Inti Village, Ngabang District. The study used a diagonal method consisting of 5 sample points on each land with different slopes. The soil samples taken included intact soil samples, disturbed soil samples, and intact aggregate soil samples. Data analysis used the Two-Way ANOVA test and if significantly different, continued with the LSD test. The results showed that the two-way ANOVA analysis showed a significant effect of the slope interaction treatment with the land on the parameters of soil bulk density and total soil porosity. Then, the two-way ANOVA analysis showed a significant effect of the land treatment alone on the parameters of soil aggregate stability. Meanwhile, the results of the two-way ANOVA analysis that did not have a significant effect were found in the parameters of field capacity water content, soil permeability, and texture of 3 fractions, namely sand, silt, and clay. The results of the chemical property analysis, namely soil pH in oil palm land and secondary forest with slopes of 8-15% and 15-30% respectively, were included in the acid criteria. C-organic in oil palm land and secondary forest with slopes of 8-15% and 15-30% respectively were included in the low criteria and the organic matter content was included in the medium criteria. Keyword: Oil Palm, Secondary Forest, Slope 8-15%, Slope 15-30%, Ultisols]]>
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