Metal-organic frameworks (MOFs) have attracted much attention from researchers as a new type of nano-lubricating material with excellent tribological properties. However, they are poorly dispersed in base oils and tend to aggregate or even precipitate, which makes achieving good dispersion stability a major challenge. Herein, we report a new strategy using oleoyl diethanolamine (ODEA) nonionic surfactant to improve the dispersion of UiO-66-NH2, and 12-hydroxystearic acid (12-HSA) gel to enhance the stability of UiO-66-NH2. Subsequently, the differential scanning calorimetry (DSC) results demonstrated that 12-HSA and UiO-66-NH2-O could improve the thermal stability of PAO-6 by increasing the decomposition temperature by 9.79% as well as decreasing the crystallization temperature by 13.32%. In addition, rheological results suggested that UiO-66-NH2-O improved the mechanical stability of the gel by a factor of 3.05. Fortunately, the four-ball friction results show that gel with 2000 ppm UiO-66-NH2-O can reduce the average coefficient of friction (ACOF) by 30.84% and the wear scar diameter (WSD) by 50.07%, respectively. Finally, scanning electron microscopy-energy-dispersive spectrometry (SEM-EDS) and x-ray photoelectron spectroscopy (XPS) analyses of the wear surfaces revealed that during friction, UiO-66-NH2-O acts as “nano-bearings” as well as “skeleton support” to form a homogeneous and stable lubrication film, which provides excellent lubrication performance.