A service distribution obtaining method, wherein the method comprises: obtaining, by a network side device, measurement information of multiple terminals in a serving cell, wherein the measurement information comprises first channel state values of channels between multiple terminals and a primary cell, and the primary cell refers to the serving cell or one of neighboring cells of the serving cell, wherein a first channel state value is a channel gain of a channel or a path loss of a channel; obtaining, by the network side device, an average service volume of each of the multiple terminals, wherein the average service volume of a terminal is a resource occupied by data that is transmitted by the terminal in the serving cell of the terminal in a unit time; classifying, by the network side device, the first channel state values by dividing a channel state range into multiple channel state intervals and determining channel state intervals within which the first channel state values of the channels between the multiple terminals and the primary cell fall, wherein the channel state range is determined according to a maximum value and a minimum value in the obtained first channel state values of the channels between the multiple terminals and the primary cell; and determining, by the network side device, service distribution, wherein the service distribution comprises a typical value of each type of the first channel state values and a first service volume between a terminal set corresponding to each type of the first channel state values and the primary cell, and the first service volume is determined according to the average service volume of each terminal, wherein a typical value of a type of the first channel state values is an average value of multiple first channel states values in a channel state interval, or a median in multiple first channel state values in a channel state interval, or is a weighted average value of multiple first channel state values in a channel state interval, a terminal set corresponding to each type of the first channel state values is a terminal set includes terminal corresponding to first channel state values in each type of first channel state values. obtaining, by a network side device, measurement information of multiple terminals in a serving cell, wherein the measurement information comprises first channel state values of channels between multiple terminals and a primary cell, and the primary cell refers to the serving cell or one of neighboring cells of the serving cell, wherein a first channel state value is a channel gain of a channel or a path loss of a channel; obtaining, by the network side device, an average service volume of each of the multiple terminals, wherein the average service volume of a terminal is a resource occupied by data that is transmitted by the terminal in the serving cell of the terminal in a unit time; classifying, by the network side device, the first channel state values by dividing a channel state range into multiple channel state intervals and determining channel state intervals within which the first channel state values of the channels between the multiple terminals and the primary cell fall, wherein the channel state range is determined according to a maximum value and a minimum value in the obtained first channel state values of the channels between the multiple terminals and the primary cell; and determining, by the network side device, service distribution, wherein the service distribution comprises a typical value of each type of the first channel state values and a first service volume between a terminal set corresponding to each type of the first channel state values and the primary cell, and the first service volume is determined according to the average service volume of each terminal, wherein a typical value of a type of the first channel state values is an average value of multiple first channel states values in a channel state interval, or a median in multiple first channel state values in a channel state interval, or is a weighted average value of multiple first channel state values in a channel state interval, a terminal set corresponding to each type of the first channel state values is a terminal set includes terminal corresponding to first channel state values in each type of first channel state values.