Seedlings of Cerasus humilis of collected from the Yanshan Mountains were used as materials, and the leaf epidermal cells and stomata micro-morphology characteristics were studied by a Scanning Electron Microscope. Variations of mineral elements in leaves and fruits and their correlations with leaf epidermal micro-morphology characteristics were also investigated to reveal the absorption and accumulation mechanism of mineral nutrients in C. humilis. The results showed that the upper and lower epidermal cells could be divided into two types, one type was concave and connected like a honeycomb and the other type was ridgy and nearly round. The upper epidermal cells were covered with striated cutin. There were some epidermal trichomes but no stomata on the upper epidermis, and stomata only distributed on the lower epidermis. The stomata extruded from epidermal cells with irregular shapes. The average length, width, size and density of stomata were (8.17±1.37)μm, (2.60±0.68)μm, (21.99±9.17)μm2 and (867.43±198.65)mm-2 respectively. There were significant differences in the leaf epidermal micro-morphology, the stomata length, the stomata width, the stomata size, the stomata density, and the content of mineral elements in leaves and fruits over different lines. Correlation analysis showed that there were significant positive linear relationships between the content of Ca and Mg in leaves and the stomata width and stomata size. The Ca and Zn content in fruit were significantly positively correlated with stomata width but significantly negatively correlated with stomata length. The Na content in fruits was significantly positively correlated with stomata density. No significant correlation existed among other elements content in leaves and fruits and stomata morphological indices. The study indicated that mineral elements absorption and accumulation in C. humilis leaves and fruits could be characterized by the leaf epidermal stomata morphological indices.