“Nonhydrolytic Sol-Gel Synthesis Method” is adopted to prepare not only ZrO2 and HfO2 but also Co-doped and Ni-doped ZrO2、HfO2 nanoparticles in this paper﹒It can be found that Zr compounds are well-crystallized and average particle size is estimated below 5 nm﹒Hf compounds are bad-crystallized and appearance of particles reveals nonhomogeneity﹒It may be attribute to the factor in experimental conditions like temperature or pressure﹒Otherwise,ZrO2 and HfO2 particles reveal diamagnetism,but Co-doped and Ni-doped ZrO2、HfO2 particles are paramagnetic﹒Ferromagnetism is not detected in all kind of particles at 40K﹒