The aim of study was to evaluate the effect of housing system and feed calcium content on quality of the eggshell. The laying hens (strain ISA brown) was housed in enriched cages and on litter. There were two groups differing in calcium content (3 % and 3.5 %) in the diet. Significant interaction between housing system and calcium content were found out in the eggshell strength (P < 0.001), the eggshell thickness (P < 0.001), eggshell ratio (P < 0.050) and eggshell index (P < 0.050). Effect of housing system significantly (P < 0.001) influenced egg weight and eggshell surface. Egg weight and eggshell surface were higher on litter. Housing system and calcium content significantly influenced eggshell weight which was higher in eggs produced on litter.