Abstract-Geophysical technique is a non-destructive method that widely used in archaeology especially in detecting and mapping buried object. Archaeological features and information acquired from the geophysics data gives an advantage for archaeologist to plan for archaeological research framework especially in optimizing the excavation work. Many techniques are applicable for archaeological investigation, depending on research objective. Ground Penetrating Radar (GPR) is one of the geophysical methods that utilizes electromagnetic waves to record relative position and shape of archaeological feature in 3D. This method was applied in detecting buried archaeological structure in Kampung Sungai Perahu, Jeniang, Kedah. The purpose of this application is to plan an excavation strategy due to the location of the site which is near to a local resident. GPR with 3D interpretation managed to locate buried objects in KSP'12 study area. Excavation has been conducted based on the result obtained from 3D GPR mapping. Besides, the result from this study may be used to detect similar archaeological findings for future research.Index Terms-Site KSP'12, Jeniang, 3D GPR survey, archaeological structure.