The end effect of B-spline empirical mode decomposition (BS-EMD) is discussed. The shortage of ordinary end extending methods is pointed out. A novel method for restraining the end effects of BS-EMD based on the support vector machines is proposed. Firstly, the original signal is extent by support vector machines before the signal is decomposed by BS-EMD. Then, the local mean interpolation curve of the extended signal is calculated by B-spline.Finally,the intrinsic mode functions (IMF) are calculated by EMD. The simulation and practical signal analysis show that the method can restrain the end effects of BS-EMD.