An information processing apparatus, comprising: a recording module configured to record radio wave intensities of a near distance radio communication between two or more first communication devices installed in an area for positioning an object and a second communication device moving in the area, in association with date and time information at which the second communication device receives the near distance radio communication from the first communication devices; and a control module configured to extract a maximum radio wave intensity received at the same date and time information by the second communication device; characterized in that the recording module is further configured to record a positioning method which is set for each of the first communication devices,and a group in which one or more further first communication devices are set to be used for a corresponding positioning method; and the control module is further configured: to extract a positioning method which is set for the first communication device with the maximum radio wave intensity; to determine whether or not the extracted maximum radio wave intensity is equal to or greater than a first threshold value; when the extracted maximum radio wave intensity is less than the first threshold value, to select one or more further first communication devices from the group corresponding to the extracted positioning method, to extract radio wave intensities for the selected further first communication devices, and to measure a position of the second communication device according to the extracted positioning method based on the extracted radio wave intensities and the maximum radio wave intensity; and when the extracted maximum radio wave intensity is equal to or greater than the first threshold value, to determine that the second communication device is present at a position where the first communication device with the maximum radio wave intensity is installed. a recording module configured to record radio wave intensities of a near distance radio communication between two or more first communication devices installed in an area for positioning an object and a second communication device moving in the area, in association with date and time information at which the second communication device receives the near distance radio communication from the first communication devices; and a control module configured to extract a maximum radio wave intensity received at the same date and time information by the second communication device; characterized in that the recording module is further configured to record a positioning method which is set for each of the first communication devices,and a group in which one or more further first communication devices are set to be used for a corresponding positioning method; and the control module is further configured: to extract a positioning method which is set for the first communication device with the maximum radio wave intensity; to determine whether or not the extracted maximum radio wave intensity is equal to or greater than a first threshold value; when the extracted maximum radio wave intensity is less than the first threshold value, to select one or more further first communication devices from the group corresponding to the extracted positioning method, to extract radio wave intensities for the selected further first communication devices, and to measure a position of the second communication device according to the extracted positioning method based on the extracted radio wave intensities and the maximum radio wave intensity; and when the extracted maximum radio wave intensity is equal to or greater than the first threshold value, to determine that the second communication device is present at a position where the first communication device with the maximum radio wave intensity is installed. to extract a positioning method which is set for the first communication device with the maximum radio wave intensity; to determine whether or not the extracted maximum radio wave intensity is equal to or greater than a first threshold value; when the extracted maximum radio wave intensity is less than the first threshold value, to select one or more further first communication devices from the group corresponding to the extracted positioning method, to extract radio wave intensities for the selected further first communication devices, and to measure a position of the second communication device according to the extracted positioning method based on the extracted radio wave intensities and the maximum radio wave intensity; and when the extracted maximum radio wave intensity is equal to or greater than the first threshold value, to determine that the second communication device is present at a position where the first communication device with the maximum radio wave intensity is installed.