Embodiments of the present invention provide a multipath searching method and a multipath searcher, to improve accuracy of delay estimation, thereby improving performance of a receiver. The method includes: performing processing on received signals ri(t) and pilot sequences pi(t) to obtain upsampling signals y(τ); subtracting contribution values of a current multipath waveform to other multipath waveforms by using a raised cosine function with a peak position set to zero and according to a global maximum value of |y(τ)|2 and a total of M sampling points {circumflex over (τ)}1(m) near the global maximum value, to obtain an upsampling signal yL(τ) having a minimum residual in M groups of upsampling signals yL(m)(τ); and obtaining a time delay power spectrum of the upsampling signal yL(τ) having the minimum residual.