The meaning of the idiom of"Shi Wei Su Can"is clear,but what is the meaning of"Shiwei(尸位)"?And what is the meaning of"Sucan(素餐)"?There are still some controversies in this field.We have sorted out the research results related to"Shiji(尸祭)",and combined the meaning of"Shi(尸)"with the differentiated word"Ju(居)",which contains the meaning of idle living,to paraphrase the meaning of"Shiwei(尸位)".On the basis of the research results,the meaning of the word"Sucan(素餐)"has been paraphrased.Combining the cognate relationship of the characters"Su(素)"and"Suo(索)",we believe that"Su(素)"is a later word,and"Su(素)"should be understood as meaning to ask for here,and"Sucan(素餐)"can be understood as meaning to ask for food without working,in other words,to eat without paying.