A load control method of a network device, wherein the method comprises: setting, by a network device, an access condition for accessing a first network by a terminal; receiving, by the network device, a first signal from the terminal, and obtaining a measurement parameter of the terminal according to the first signal, wherein the measurement parameter is a signal strength of the terminal wherein the network device comprises a network access point and a first network controller of the first network, and the step of setting, by a network device, an access condition for accessing a first network by a terminal comprises: obtaining, by the network access point, a load of the network access point of the first network, and setting the access condition according to the load, so as to compare the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, and setting the access condition according to the load, sending, by the first network controller, the access condition to the network access point, and comparing, by the network access point, the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, setting the access condition according to the load, and comparing the measurement parameter of the terminal with the access condition; and if the measurement parameter of the terminal satisfies the access condition, sending, by the network device, a second signal to the terminal, so as to allow the terminal to access the first network; wherein the measurement parameter of the terminal satisfies the access condition when the measurement parameter is greater than or equal to a preset measurement parameter threshold. setting, by a network device, an access condition for accessing a first network by a terminal; receiving, by the network device, a first signal from the terminal, and obtaining a measurement parameter of the terminal according to the first signal, wherein the measurement parameter is a signal strength of the terminal wherein the network device comprises a network access point and a first network controller of the first network, and the step of setting, by a network device, an access condition for accessing a first network by a terminal comprises: obtaining, by the network access point, a load of the network access point of the first network, and setting the access condition according to the load, so as to compare the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, and setting the access condition according to the load, sending, by the first network controller, the access condition to the network access point, and comparing, by the network access point, the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, setting the access condition according to the load, and comparing the measurement parameter of the terminal with the access condition; and if the measurement parameter of the terminal satisfies the access condition, sending, by the network device, a second signal to the terminal, so as to allow the terminal to access the first network; wherein the measurement parameter of the terminal satisfies the access condition when the measurement parameter is greater than or equal to a preset measurement parameter threshold. obtaining, by the network access point, a load of the network access point of the first network, and setting the access condition according to the load, so as to compare the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, and setting the access condition according to the load, sending, by the first network controller, the access condition to the network access point, and comparing, by the network access point, the measurement parameter of the terminal with the access condition; or obtaining, by the first network controller, a load of the network access point of the first network, setting the access condition according to the load, and comparing the measurement parameter of the terminal with the access condition; and if the measurement parameter of the terminal satisfies the access condition, sending, by the network device, a second signal to the terminal, so as to allow the terminal to access the first network; wherein the measurement parameter of the terminal satisfies the access condition when the measurement parameter is greater than or equal to a preset measurement parameter threshold.