运用SHS（分谐波累加）法可准确地提取单个语音的基音周期，本文将该方法推广运用到重叠语音基音的分离检测，并提出了相应的检测方法．实验证明，本文提出的方法能有效地分离并提取两重叠语音的基者，即使对于基音周期相差较近的两个重叠语音也能取得较好的结果． The SHS (Subharmonic Accumulation) method can accurately extract the pitch period of a single speech. In this paper, the method is applied to the separation detection of overlapping speech pitch, and the corresponding detection method is proposed. Experiments show that the proposed method can effectively separate and extract the two overlapped voice base, even for two overlapping voices whose pitch difference is very close.