Peat is a valuable natural resource with multi- purpose. The storage of organic carbon in peat is an important parameter to study the change of global carbon pool and carbon cycle. Due to the particularity of peat distribution in bogs and soft peat water content, the quality of peat depth survey and original peat samples obtained for testing is not high, leading to uncertainty and deviation in the evaluation of peat carbon storage. Through the sampling test of shallow drilling peat investigation in the typical peat formation area of the zoige swamp wetland, the method of undisturbed sampling by vibration shock of portable drilling rig was explored. The adaptability of portable drilling rig in difficult to access swamp wetland has been verified by experiments carried out in two different bog and wetland strata at the edge and center of peat patch. The matching vibration shock process can obtain high- quality undisturbed peat samples and depth information of peat. The effectiveness of peat survey and sampling using vibration and impact drilling technology with portable drilling rig was preliminarily explored through experiments. Shallow sampling drilling, as a direct and effective technical means of peat survey, can effectively improve the efficiency and accuracy of peat survey and provide reliable drilling technical service support for the preparation and evaluation of peat reserve data.