The invention discloses a method, a device, and a system for server scheduling, a storage medium and a device. The server scheduling method comprises: a monitoring step, monitoring network index data of a business server, to obtain network index data; a scheduling step, when the data is larger than a preset threshold, scheduling defense equipment for the business server. The method realizes to make the business server have optimal network service quality when the business server is not attacked by network attack while effectively providing network attack defense capability for the business server under finite cost, and the business server is not influenced by the defense equipment.