A method in which a system environment management device manages user environment information, the method includes: connecting to a first user terminal; searching for and reading personal information and environment setting information of the first user terminal; analyzing the personal information and environment setting information; determining whether the analyzed personal information and environment setting information is a common element; and storing, if the analyzed personal information and environment setting information is a common element, the analyzed personal information and environment setting information in a common profile storage unit of the system environment management device.