The invention calligraphy and painting fixed point latent high strength fibre false proof evaluation method, comprising the following steps: before backing up the works with the last layer rice paper,laying the at least one high strength fibre on the back of work, which is superposed with the diagonal line of work, the line emerging less than 1mm, then backing up the last layer rice paper, hidingthe high strength fibre, recording the number and direction of high strength fibre in the false proof date, and putting it in the authority structure file; when identifying the works, fetching the date, finding the line with microscope, pulling the line with strong force, if the line being break, the work being bastard, if not, the work being authentic work. The method is simple, easy, reliable and fit for the false proof treatment and effective identification.