The invention discloses a picture operation method based on a knowledge graph. The picture operation method is picture search operation and comprises the steps of receiving keywords, 1, obtaining pictures labeled with search words, identifying the labeled search words of the pictures, and if the search words are any one of the keywords, synonyms, hypernyms, subordinate words and related words, returning to the pictures; 2, in the returned picture, the marked search words are in front of a picture row of keywords and keyword synonyms, the marked search words are behind a picture row of keywordhyponyms, keyword hyponyms and keyword related words, and if a user finds a target picture from the arranged picture, the search is completed; If the user does not find the target picture from the arranged pictures, executing the step 3; And step 3, after the associated keywords and the returned picture are labeled with the search words, repeating the step 1 and the step 2 until the target pictureis found in the returned picture. The method can improve the picture search efficiency with small calculation overhead.