The invention discloses a novel method for dynamically monitoring population quantity of adults of sogatella furcifera. According to the method, peak green adhesive plastic plates are hung on a paddy field and are used for trapping the sogatella furcifera. The method particularly comprises the following steps of selecting three typical rice fields or transplantation fields with high growth vigor of rice before 10 days of the day when the adults of the sogatella furcifera appear at the earliest in the history to the harvest time of the rice in the rice growing season; hanging peak green sogatella furcifera adhering plates at positions, which are distant from ridges by 50cm, in the middles of the fields; fixedly hanging the peak green sogatella furcifera adhering plates on thin stick supports and inserting the peak green sogatella furcifera adhering plates in the rice fields; hanging the three sogatella furcifera adhering plates in each field under the conditions that the distance between each two peak green sogatella furcifera adhering plates is not smaller than 5m and the sogatella furcifera adhering plates are higher than rice plants by 0.2-0.3m; and investigating and counting the quantity and the genders of the sogatella furcifera on the sogatella furcifera adhering plates at intervals of 5-7 days during monitoring. By the novel method, dynamic change of the population quantity of the adults of the sogatella furcifera can be monitored effectively. The novel method has the advantages that the novel method is economical and practical and is easy to operate, the sogatella furcifera adhering plates are easy and convenient to mount, and trapping measurement interference is low, so that the novel method is suitable to be popularized and used.