The invention discloses an intelligent key management cabinet and a key storage method thereof. An electrical box is fixed to the bottom of a cabinet body of the management cabinet, an UHF (ultra-high-frequency) reader-writer used for reading and writing an ultra-high-frequency RFID electronic tag bound with a key is installed in the electrical box, an HF reader-writer used for reading a high-frequency HF magnetic card is installed on the electrical box, and a touch screen is installed in the electrical box. The invention discloses the intelligent key management cabinet and the key storage method thereof. An independent electronic tag is pasted on each vehicle key; then, the RFID reader-writer is used for reading; therefore, it can be judged that the vehicle key is put in and taken out each time, the automatic recording is achieved, a contact person of the vehicle key can be monitored in an authorized opening mode, finally, the responsibility is achieved, responsibility investigation and recording are facilitated, the vehicle key and the vehicle certification can be traced, the responsibility is achieved, and traceability is facilitated when disputes occur in the later period.