A usage control method for a medical detection device, the medical detection device comprising an excitation device for generating an elastic shear wave in a viscoelastic medium and a capturing device for determining displacement data which is generated by the viscoelastic medium under action of the elastic shear wave, wherein, the medical detection device is connected to a dongle through a communication interface, the dongle storing a quantity of available usage times of the medical detection device and a device identification of the medical detection device, wherein the method comprises: receiving, by the medical detection device, an operation instruction inputted by an operator, and prompting the operator to input an authorization file when the operation instruction is an instruction which instructs to perform configuration authorization; receiving, by the medical detection device, an authorization file inputted by the operator, and displaying an operation interface corresponding to the operation instruction when the authorization file passes authentication; wherein the authorization file is generated by the dongle according to the quantity of currently available usage times and the device identification; executing, by the medical detection device, configuration content which is inputted by the operator on the operation interface; receiving, by the medical detection device, a serial number and a key of the dongle inputted by the operator, to bind the dongle to the medical detection device if the serial number and the key are correct to authorize a user of the medical detection device; receiving, by the medical detection device, a login request from the operator, obtaining the quantity of available usage times from the dongle, and obtaining a quantity of used usage times of the medical detection device from a usage log; when the quantity of used usage times is less than or equal to the quantity of available usage times, determining, by the medical detection device, that the operator logs in successfully, so that the operator performs elasticity detection on the viscoelastic medium using the medical detection device. the medical detection device is connected to a dongle through a communication interface, the dongle storing a quantity of available usage times of the medical detection device and a device identification of the medical detection device, wherein the method comprises: receiving, by the medical detection device, an operation instruction inputted by an operator, and prompting the operator to input an authorization file when the operation instruction is an instruction which instructs to perform configuration authorization; receiving, by the medical detection device, an authorization file inputted by the operator, and displaying an operation interface corresponding to the operation instruction when the authorization file passes authentication; wherein the authorization file is generated by the dongle according to the quantity of currently available usage times and the device identification; executing, by the medical detection device, configuration content which is inputted by the operator on the operation interface; receiving, by the medical detection device, a serial number and a key of the dongle inputted by the operator, to bind the dongle to the medical detection device if the serial number and the key are correct to authorize a user of the medical detection device; receiving, by the medical detection device, a login request from the operator, obtaining the quantity of available usage times from the dongle, and obtaining a quantity of used usage times of the medical detection device from a usage log; when the quantity of used usage times is less than or equal to the quantity of available usage times, determining, by the medical detection device, that the operator logs in successfully, so that the operator performs elasticity detection on the viscoelastic medium using the medical detection device. receiving, by the medical detection device, an operation instruction inputted by an operator, and prompting the operator to input an authorization file when the operation instruction is an instruction which instructs to perform configuration authorization; receiving, by the medical detection device, an authorization file inputted by the operator, and displaying an operation interface corresponding to the operation instruction when the authorization file passes authentication; wherein the authorization file is generated by the dongle according to the quantity of currently available usage times and the device identification; executing, by the medical detection device, configuration content which is inputted by the operator on the operation interface; receiving, by the medical detection device, a serial number and a key of the dongle inputted by the operator, to bind the dongle to the medical detection device if the serial number and the key are correct to authorize a user of the medical detection device; receiving, by the medical detection device, a login request from the operator, obtaining the quantity of available usage times from the dongle, and obtaining a quantity of used usage times of the medical detection device from a usage log; when the quantity of used usage times is less than or equal to the quantity of available usage times, determining, by the medical detection device, that the operator logs in successfully, so that the operator performs elasticity detection on the viscoelastic medium using the medical detection device.