Because the technology has many limitations, methods applied to study the principle of handwriting authentication still remain in primary stage.

Handwriting Chinese Character Computer Writer Identification Based on Stroke——Computer Writer Identification Based on Motion Feature,First and Last feature;

Chinese Handwriting Character Computer Writer Identification Based on Coefficient Transform of Stroke;

Chinese Handwriting Character Computer Writer Identification Based on Coefficient Transform of Pressure Change

Key Techniques of the Automatic Handwriting Identification in the Computer;

In 1930s,the establishment of The Theory of Writing Habit indicated that the modern handwriting identification made a great progress.

In the handwriting identification process,because the writers writing conditions are quite different and the writing conditions are changing,the handwriting valuers always are confused by the writing changes casued by writing conditions and imitation handwritings.

The handwriting authentication is affectedby subjective and objective factors because it is too professional and the relative standard has not been built up.

With the achievement of graphology,this paper studies nowadays handwriting verification in China and analyzes the reasons,characteristics and law of handwriting change caused by the writer\'s physiological and psychological condition in certain writing situation and surroundings.

For the insufficiency of traditional information fusion algorithms used in handwriting verification,advanced majority rule information fusion algorithm is put forward.