Provided is a storage system that can store various types of and large amounts of sensor data while accurately compressing the sensor data without wasting storage resources. The storage system includes: a storage that records sensor data output from a plurality of sensors; a processor that controls recording of sensor data in the storage; and a memory that records parameters of the plurality of sensors. The processor reads parameters assigned to the sensors that output the sensor data from the memory, normalizes the sensor data based on the parameters, compresses the normalized sensor data, and records the compressed sensor data in the storage.