Sustainable development goal is the development of such as materials, which might not drop the negative impact over the environment, ecology and society and has long resiliency or life if bring into use. In today’s era, the world is concentrating on alternative materials that are naturally recyclable and friendly to the environment. In place of synthetic fibres, renewable natural fibres now offer an alternative polymer composite material. Pollution of the environment has become unavoidable due to the toxic gas emissions from burning large quantities of residual rice straw fibres. As we know that natural fiber and epoxy resin is ascertained as momentous composite material amongst other composite materials due to its multipurpose usage in engineering, versatility cum unique mechanical properties, low-cost fabrication, renewable, biodegradable, and recyclable. In the presented research work, analysis of mechanical Behavior, of rice straw and bamboo fiber hybrid composite. To analysis same, in this research work a hybrid composite was created by first treating rice straw fibre with sodium hydroxide in an alkali process and then combining the treated rice straw sheet in stacking sequences with bamboo fiber. The testing results show that the specific tensile strength and flexural strength of rice straw fiber combined with bamboo fiber is greater than another hybrid composite. In addition to that, the hardness of rice straw fiber combined with bamboo fiber is also found greater than the other hybrid composite. The discussed hybrid composite fabrication scheme, testing, analysis and results represented graphically throughout the presented research work.