Aluminium honeycomb sandwich panel (AHSP) has high specific stiffness and finds potential application in aerospace and space industry. AHP, however, is vulnerable against impact loading. Hence, understanding the resistance of AHSP against impact loading condition is important. This paper presents the research results of impact on aluminium honeycomb sandwich panel (AHSP) under high-speed axial impact in a velocity range of 120 m/s. Impact tests were conducted on sandwich panels by firing spherical aluminium and steel projectiles on the AHP. Impact test was conducted by firing a spherical projectile from the Gas gun. High-speed camera images of the projectile were traced to compute the entry and exit velocity of the projectile. Parametric studies were conducted to understand the ballistic limit of AHP. Correlation between the energy absorbed by AHSP under ballistic impact perforation is presented.