A chewing side monitoring method comprises the following steps of: step S10: collecting a left side of an acoustic signal and a right side of the acoustic signal by a bone conduction method； step S20: generating a left side power spectrum of the left acoustic signal and a right side power spectrum of the right acoustic signal during the monitoring period； step S30: integrating the left side power spectrum to obtain the left integration value, and the right side power spectrum to obtain the right integration value； and step S40: determining the actual chew side of the monitoring period based on the left integration value and the right integration value. The chewing side monitoring method of the present invention can monitor the actual chewing side used for a period of time to judge whether to chew unilaterally for reminding the user to chew with balance.本發明提供了咀嚼側監測方法、監測裝置及可穿戴設備，其中的咀嚼側監測方法包括：步驟S10，獲取用骨傳導方式採集的左側聲波信號和右側聲波信號；步驟S20，生成監測週期內該左側聲波信號的左側功率譜，和該右側聲波信號的右側功率譜；步驟S30，對該左側功率譜積分得到左側積分值，對該右側功率譜積分得到右側積分值；步驟S40，至少根據該左側積分值和該右側積分值，判斷該監測週期內的實際咀嚼側。本發明的咀嚼側監測方法可以監測一段時間內使用的實際咀嚼側，判斷是否單側咀嚼，並及時發出提醒，促使用戶均衡咀嚼。
