Provided is a chemical material managing system by which handling quantities can be extremely accurately managed by a simple operation. A RFID tag (11) is attached to a container (10) having a chemical material contained therein. A computer for registration (100) is provided with an electronic balance (150) which measures the weight of the chemical material with the container (10), and a reader/writer (160) which reads the chemical material ID from the RFID tag (11) on the container (10) being measured using the electronic balance (150). The computer for registration (100) registers in a database server (200) the weight of the container (10) measured using the electronic balance (150) together with the chemical material ID read by the reader/writer (160).
