1, the difference in definition: historical theory, which originally refers to the words that historians comment on historical events and figures after "Biography". Later, all papers about historical events and historical figures were also called "historical theory"; "Historical facts are historical facts.

2. Different emphases: historical theory emphasizes function, while historical facts emphasize facts.

3. Different standpoints: historical facts are historical facts, and historical theories are comments on historical events and historical figures.

In China ancient historiography and related historical documents, historiography is a comment on objective history such as historical events, people and historical phenomena, and its concept is clear; However, historical criticism is a comment on historiography itself, such as historians, history books and historical phenomena, and its concept is vague.