A sensor data management apparatus according to an embodiment stores pieces of sensor data in data areas provided corresponding to prescribed data units and manages the pieces of sensor data. The pieces of sensor data have been input from a plurality of sensors. The sensor data management apparatus includes a group determining unit and a data storing unit. The group determining unit is configured to analyze the pieces of stored sensor data and determine groups of sensors based on a result of the analysis. The data storing unit is configured to determine a storage location of a newly input piece of sensor data to store pieces of sensor data from sensors belonging to the same one of the groups in the same one of the data areas, and store the piece of sensor data at the storage location.