The science inquiry-experiment is new subject developed for high school students according to the 2015 revised science national curriculum. The subject was focused on improving scientific inquiry ability of high school students on the basis of the inquiry and experiment. We examined characteristics of inquiry activities presented in science inquiry-experiment textbooks. In order to do this, types of inquiry activities presented in science inquiry-experiment textbooks were comparatively analyzed according to units and publishers. Types of inquiry activities were categorized into experiment & observation, data interpretation, investigation-discourse & presentation, discussion, expression, science writing, and simulation. Experiment and observation, data interpretation, investigation-discourse & presentation, and expression were more among them, the other hand, discussion, science writing and simulation were somewhat presented. As a result, there were some differences in activity types and frequency according to the publishers. Science inquiry-experiment teachers need to proceed with the teaching and learning process by appropriately modifying inquiry contents and types of inquiry. It is necessary to continuously monitor whether the objectives of the 2015 revised science national curriculum are being applied and reflected through on-site science classes, and supplement them through subsequent studies.