In this study, the illustrations in 16 elementary science textbooks developed under the 2007 Revised National Curriculum were analyzed in the aspect of gender-role stereotyping, and the results were compared with those of the 7th National Curriculum. The frequencies of male and female who appeared on textbook illustrations were counted, and the types of activities and the characters of them were analyzed. Most pupils were found to be active, and female pupils appearing in the textbooks were more than male pupils. In all types of activities for pupils, the difference between male and female was decreased compared with that of the 7th National Curriculum. Male and female pupils were illustrated in learning activities with almost equal frequencies, but male pupils were still more frequently represented than female pupils in other activities. Gender difference in adults was increased and the difference was statistically significant. Gender difference in houseworks was not large, but the difference in outdoor activities was statistically significant. Especially, the jobs of adults were illustrated as male-centered, and scientists appearing in the textbook illustrations were also mostly male.