An activation device activates a capsule medical device that has a first coil inside and is activated when voltage not less than a first specified value or current not less than a second specified value is generated in the first coil. The activation device includes: a case a second coil that is provided in the case and is configured to generate a magnetic field when current flows through the second coil and a guide portion for guiding to a position that is located outside the case and that is a position of the capsule medical device where the capsule medical device can be activated based on the magnetic field generated by the second coil. The capsule medical device is housed at a specified position in a specified posture in a container having a specified shape. The case has a placement surface on which the container is configured to be placed.