Honeycomb panels are widely used in various engineering fields to increase structural stiffness under light weight, or to control vibration & noise. It is also common practice to attach honeycomb bands to original structures, such as aircraft skins, train and car bodies to increase the structural stiffness or to improve the structural dynamics with light addition of weight. This research is concerned with studying the characteristics of Carbon Nanotubes (CNT) reinforced with Fiber-reinforced plastic/carbon fiber. The study contains experimental studies of Nano-composites. The tensile and compressive strength of the CNT Reinforced Honey comb sandwich core is determined by conducting a series of tensile and compression tests in accordance with the ASTM D3039 and ASTM D695 standard on the FRP honeycomb sandwich panels with different percentage of CNT. Increasing the percentage of CNT in FRP honeycomb sandwich composites increases the strength of the structure to certain extant. However addition of CNT behind 2% decreases the strength.