A method for location service control, applied to a first communications unit including a terminal, and comprising: transmitting control information and information related to a first valid time to a second communications unit, wherein the control information is used to control related behavior of obtaining location of the terminal, the second communications unit comprises a radio access network RAN network element, a core network CN network element, a location service client, or an application function AF; the information related to the first valid time comprises: information related to a valid time for the control information; the information related to the first valid time comprises at least one of the following: time period information for the control information and valid duration for the control information, wherein the time period information for the control information is used to indicate a valid time period for the control information; the time period information for the control information comprises at least one of the following: a start-of-validity time for the control information, an end-of-validity time for the control information, and a loss-of-validity time for the control information; the control information comprises at least one of the following: first indication information, wherein the first indication information indicates at least one of the following: whether related behavior of obtaining location of the terminal is allowed, whether subsequent related behavior of obtaining location of the terminal is allowed by the terminal, whether a subsequent location service request specific to the terminal is allowed, that a subsequent location service request specific to the terminal is allowed, and that a subsequent location service request specific to the terminal is not allowed; and second indication information, wherein the second indication information indicates at least one of the following: whether the first indication information is applicable to all location service clients; information related to a location service client to which the control information is applicable; and information related to a location service client for which the control information is not applicable. transmitting control information and information related to a first valid time to a second communications unit, wherein the control information is used to control related behavior of obtaining location of the terminal, the second communications unit comprises a radio access network RAN network element, a core network CN network element, a location service client, or an application function AF; the information related to the first valid time comprises: information related to a valid time for the control information; the information related to the first valid time comprises at least one of the following: time period information for the control information and valid duration for the control information, wherein the time period information for the control information is used to indicate a valid time period for the control information; the time period information for the control information comprises at least one of the following: a start-of-validity time for the control information, an end-of-validity time for the control information, and a loss-of-validity time for the control information; the control information comprises at least one of the following: first indication information, wherein the first indication information indicates at least one of the following: whether related behavior of obtaining location of the terminal is allowed, whether subsequent related behavior of obtaining location of the terminal is allowed by the terminal, whether a subsequent location service request specific to the terminal is allowed, that a subsequent location service request specific to the terminal is allowed, and that a subsequent location service request specific to the terminal is not allowed; and second indication information, wherein the second indication information indicates at least one of the following: whether the first indication information is applicable to all location service clients; information related to a location service client to which the control information is applicable; and information related to a location service client for which the control information is not applicable. first indication information, wherein the first indication information indicates at least one of the following: whether related behavior of obtaining location of the terminal is allowed, whether subsequent related behavior of obtaining location of the terminal is allowed by the terminal, whether a subsequent location service request specific to the terminal is allowed, that a subsequent location service request specific to the terminal is allowed, and that a subsequent location service request specific to the terminal is not allowed; and second indication information, wherein the second indication information indicates at least one of the following: whether the first indication information is applicable to all location service clients; information related to a location service client to which the control information is applicable; and information related to a location service client for which the control information is not applicable.