Legal analysis: the cost of signature handwriting identification is not uniform, and the cost varies from province to province. Handwriting identification needs to find a special institution for identification, and the cost is generally between 800-2000 yuan. Handwriting identification is a special technology to identify the writer according to the characteristics of people's writing skills and habits, as well as the reflection in writing handwriting and painting.

Legal basis: People's Republic of China (PRC) Civil Procedure Law.

Article 76 A party may apply to a people's court for an appraisal of the specific circumstances of finding out the facts. If the parties apply for appraisal, the qualified appraisers shall be determined by both parties through consultation; If negotiation fails, it shall be designated by the people's court. If the parties concerned do not apply for identification, and the people's court considers it necessary to identify specialized issues, it shall entrust a qualified appraiser for identification.