The various signature anomie behaviors of academic dissertations seriously affect the objectivity and the fairness of document statistics and academic evaluation. The author contribution statement has an importantly bound effect on the authors’ signature. Firstly, the source journals of the Chinese Science Citation Database (CSCD) in 2017-2018 are taken as research objects, and the status quo of the authors’ contributions statements of Chinese sci- tech academic journals is examined, we find the fact: Only 2.6% (32/1028) of the 1229 journals have an author contribution statement, including 0.19% (2/1028) for Chinese language journals and 14.93% (30/201) for English language journals. Secondly, we analyzed the reasons that author contribution statement has not been popularized in Chinese scientific and technological academic journals and the problems in academic articles. Finally, some suggestions and measures are proposed to provide reference for the author"s signature criterion, the true reflection of the author"s contribution, the promotion of sci-tech cooperation and academic evaluation.