The intrinsic mode functions (IMFS) decomposed by empirical mode decomp osition (EMD) method often lose their physics meanings because of the abnormald ata and the noise. An improved EMD method based on singular value decomposition (SVD) denoising of the attractor is presented. The signal noise ratio (SNR) is increased and the decomposed component will obtain its physics meaning. The origi nal signal is denoised by SVD and the useful and the redundant parts are obtained. The useful parts are decomposed by EMD method, so the interference of the red undant part was reduced. An example demonstrates that the improved method is eff ective.