Abstract: Dark matter has attracted great attention in physics because any new research and progress in this subject will stimulate particle physics, astrophysics and cosmology. Some major experiments in progress around the world, has already obtained interesting results. Here we shall discuss two important experiments: the Sino-Italian Dark Matter (DAMA) Group with the 100kg NaI(Tl) detector set-up and the US Cold Dark Matter Search (CDMS) Group with bolometer detectors. The physical analysis methods and the DAMA experimental results will be explained in detail and compared with the results of CDMS experiment.