To provide a contents creating device and a contents creating method capable of distributing contents having an article arrangement with high relativity to a user as distribution destination. A contents creating device 100 to create contents to be distributed within a predetermined group, including a material evaluation unit 130 configured to evaluate relativity of material data of contents to a user as contents distribution destination, and a contents editing unit 140 configured to determine an article arrangement within contents according to an evaluation, wherein contents based on the article arrangement are created. Due to this, it is possible to distribute contents having an article arrangement with high relativity to a user of the distribution destination and it is possible for the user as distribution destination to browse an article in which the user is highly interested.