Provided are an environmental map management device, an environmental map management system, an environmental map management method and a program capable of generating a common environmental map in consideration of privacy while ensuring a space covered by an environmental map available to the user. The processing data transmission unit (68) accesses the individual environment map available to the user of interest. The processing data transmission unit (68) accesses a common environment map that can be used by a plurality of users including the user of interest. The SLAM processing execution unit (52) adds the environment information generated based on the sensing data acquired by the tracker used by the user of interest to the individual environment map. The transmission control unit (60) controls whether or not to add the environmental information to the common environment map according to the privacy attribute of the environmental information.
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