Sensors for geotechnical engineering are developing in the last decades. General report consists of two parts. The first part is to review recently developing technologies like MEMS (Micro Electro Mechanical Systems), GPS (Global Positioning Systems), BOTDR (Brillouin Optical Fiber Reflectometry), as well as wireless system. The second part contains the overview of the 11 papers that were submitted to the 17th ICSMGE.