In this study, the effects of defects such as dust, voids and geometric distortions occurring in micro lattice structures produced by selective laser melting on mechanical properties were investigated. Micro lattice structures are made of 316L stainless steel material, in the form of a body-centered cubic (BCC) structure, with struts of 200 µm diameter. Defects occurring on the surface was modeled realistically using the scanning electron microscope images. The mechanical properties of the structure were examined by using the experimental and finite element method with compression tests. As a result of the tests carried out, it was observed that the finite element results converged to the experimental data by increasing the number of cells and increasing the number of wires accordingly. In the realistic modelling of the compression tests, considering the analysis time and the convergence to the experimental results, it is found out that at least two half-cells should be modeled. Although it is seen that the micro powders adhering on the part do not have much effect on the stress value, it has been determined that the strain value change makes it more realistic due to the early contact areas.