We have investigated curative effects of a complex field consisted of magnetic field, weight field and sound field. The complex field irradiated the mice inoculating three kinds of tumour stem, suffering different malignant tumour for 60 day. According to alive, we evaluated curative effects of tumour. The result showed that life extended rate(T/C) and living quality of the mice suffer from cancer, irradiated with complex fields, were greater than those of the control group.