The invention discloses a network equipment software and data remote update method, in order to solve that the remote update software and data in the existing network equipment might lead to the failure and so the system operation is unstable. The method of the invention includes: the step to transmit the new version software to the equipment; the step to transmit the new version data to the equipment; processing the data loading of the equipment, and when the data loading failure, alternating the data main and backup switching, and software main and backup switching, and processing data loading, until data loading successful. The method of the invention can do data transmission and data update from the remote, even the new versions data or the new version software transmission error causing the update not successful, according to the switching rule, it can still load the old version software and data, to ensure the system stability, and improve the security of the remote update, and greatly increase work efficiency and reduce the costs.