Abstract:Long call is a peculiar type of sound uttered by male plateau pika and it is related to its reproduction.It is important to understand its reproductive strategy by studying the acoustic characteristics and behavior of plateau pika.In this study,we used a digital recorder with directional microphone and video camera to record the long call and behavior of seven male plateau pikas simultaneously in Maqu County,Ganan Tibetan autonomous prefecture,during March to May in 2018;used the voice analysis software Wavesurfer to analyze the recorded long calls,and according to the behavior of the long calls,they were divided into alarm calls,mating calls,and defense calls,meanwhile the syllable interval,syllable duration,main frequency,and spectrogram of these long calls were obtained.The results showed: (1)There were 30 syllables in the long calls sounded by male plateau pika;(2)The long call of male plateau pikas had a strong complexity;(3)The mating calls and defense calls had the similar acoustic characteristics.