Abstract:Insect tea is an unique kind of unconventional tea that was processed from the excrement of special insects eating specific plants in China，and contains a variety of active ingredients such as amino acids，proteins，polyphenols to perform the lots of health care and medicinal functions.The research results of the processing methods，biosafety，chemical components and pharmacological functions of insect tea were introduced，and improvement direction of processing technology and prospects of application development to provide a theoretical basis for the innovation and quality improvement of insect tea were discussed in the study.