Pepper was always widely used as a seasoning that were basically purple, commonly known as red Chinese prickly ash. In recent years, green pepper became popular and get more and more loved and popularity, which had obvious re-gionality. Green pepper was also known in folk fragrant pepper son, cliff pepper, wild pepper, green pepper, dogs pepper, and so on. And its unique flavor and nutrients received attention day by day. Classifications, country of origin, main flavor substance, nutritional function, brown stain principle and differences in composition with red Chinese prickly ash of green pepper were ana-lyzed. It makes guidance for further development and utilization of green peppercorns.