Sub band array processing for wideband adaptive array is proposed in references,but the sub band segments is fixed so the signals number distribution in each segment is unbalanced,the empirical mode decomposition(EMD) domain linearly constrained minimum variance(LCMV) algorithm for wideband array is proposed based on adaptive band segmentation,the EMD decompose multicomponent signals into many intrinsic mode function(IMFs) and focus on signals’ local characteristic, Combining IMF characteristic and meeting the narrow band request of LCMV,as well as taking fully the advantage of adaptation. The problems of anti jamming performance degradation and insufficient processing freedom degrees are settled for wideband adaptive array in the limited elements situation.The detection of weaker target is realized effectively in strong interference environment. Compared with the traditional FFT sub band,the proposed is applicable to wideband limited elements adaptive array with no prior frequency partition,increasing the array processing freedom and improving gain performance by 11 dB at 3 elements and in strong interference situation.Simulations are conducted to indicate the validity.