Aluminium has contributed very significantly in its development as a versatile metal. Because of unique characteristics, aluminium has substituted much older and established materials like wood, copper, iron, and steel. On volumetric basis, more aluminium is consumed than all other non-ferrous metals including copper and its alloys as well as lead, tin and zinc. Aluminium has achieved this position in spite of the fact that its commercial production began only towards the end of the 19 century, and thus aluminium was a latecomer to the industry. The present work mainly focuses on the mechanical strength of the alloy Al7068 with Mg% and Zn% variation in composition. The compression behaviour and hardness of the aluminium alloy Al7068 by varying the Magnesium and Zinc composition was studied in this research work. Compression behaviour and hardness of the material are studied for Mg variation (2.2 to 3%) and Zn variation (7.3 to 8.3%) individually. These specimens were first machined to ASTM standard size and then the experiment was conducted for the required parameters. The results show that low strain was obtained for the Mg composition of 2.5% and Zn composition of 7.6% whereas the highest hardness of the material was achieved at 3% Mg and 8% Zn compositions.