A device for supporting management of a container which contains a plurality of electronic components supplied to a mounting machine, the device comprising: a container database which is configured to record a type, remaining quantity, and remaining floor life time of the electronic components contained in the container; a production plan database which is configured to record a type and the number of required electronic components and scheduled starting time of a production lot for every production lot which is scheduled in the mounting machine; a processing unit for determining a management mode which is appropriate for the container by using the container database and the production plan database; and an instruction unit for instructing the management mode which is determined by the processing unit to the outside, characterized in that the processing unit is configured to compute a first scheduled time at which the mounting machine uses up the electronic components contained in the container, and is configured to determine the management mode which is appropriate for the container based on whether a first time period from a current point in time to the first scheduled time is shorter than the remaining time of the floor life, wherein, when the first time period is shorter than the remaining time of the floor life, the processing unit is configured to determine the management mode for storing the container in the mounting machine or in the vicinity thereof as the management mode which is appropriate for the container; and when the first time period is longer than the remaining time of the floor life, the processing unit further is configured to compute a second scheduled time at which the mounting machine starts using the electronic components contained in the container, and is configured to determine the management mode which is appropriate for the container based on whether a second time period from the second scheduled time to the first scheduled time is shorter than the remaining time of the floor life; and when the second time period is shorter than the remaining time of the floor life, the processing unit is configured to determine the management mode for storing the container in a moisture-proof environment as the management mode which is appropriate for the container. a container database which is configured to record a type, remaining quantity, and remaining floor life time of the electronic components contained in the container; a production plan database which is configured to record a type and the number of required electronic components and scheduled starting time of a production lot for every production lot which is scheduled in the mounting machine; a processing unit for determining a management mode which is appropriate for the container by using the container database and the production plan database; and an instruction unit for instructing the management mode which is determined by the processing unit to the outside, characterized in that the processing unit is configured to compute a first scheduled time at which the mounting machine uses up the electronic components contained in the container, and is configured to determine the management mode which is appropriate for the container based on whether a first time period from a current point in time to the first scheduled time is shorter than the remaining time of the floor life, wherein, when the first time period is shorter than the remaining time of the floor life, the processing unit is configured to determine the management mode for storing the container in the mounting machine or in the vicinity thereof as the management mode which is appropriate for the container; and when the first time period is longer than the remaining time of the floor life, the processing unit further is configured to compute a second scheduled time at which the mounting machine starts using the electronic components contained in the container, and is configured to determine the management mode which is appropriate for the container based on whether a second time period from the second scheduled time to the first scheduled time is shorter than the remaining time of the floor life; and when the second time period is shorter than the remaining time of the floor life, the processing unit is configured to determine the management mode for storing the container in a moisture-proof environment as the management mode which is appropriate for the container.