The invention discloses an equipment dormancy method based on a CSM mechanism DRX. The method comprises the following steps that under an RRC_CONNCTED ACTIVE state, a MTCD transmits a first data packet to a base station, then decodes and reads information N of a data packet number which needs to be continuously transmitted; a deactivation timer and a packet counter whose threshold is the N are started, downlink channel monitoring and data uploading are continuously performed, and after a dormancy condition is satisfied, a Short DRX state is entered into; under the Short DRX state, and in an On Duration period, data monitoring is performed, and if a DRX short period timer is overtime and does not monitor the data, the MTCD enters into a Long DRX state; under the Long DRX state, and in the On Duration period, the data monitoring is performed, and if a DRX long period timer is overtime and does not monitor the data, the MTCD enters into an IDLE DRX state; and under the IDLE DRX state, the MTCD is periodically awakened to monitor downlink transmission of a network till that the MTCD is paged, and then the MTCD returns and enters into the RRC_CONNCTED ACTIVE state. The invention provides the equipment dormancy method based on the CSM mechanism DRX so that the equipment can carry out high-efficiency operation when entering into a low power consumption dormancy state.