A mobile terminal control method, comprising: receiving, by a mobile terminal, N direction-finding signals that are respectively sent by a multiple-antenna node at N moments, wherein the multiple-antenna node is located in an indoor-outdoor critical area; obtaining N pieces of location relationship information between the mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals, wherein the N moments and the N pieces of location relationship information are in a one-to-one correspondence; determining location relationship change information between the mobile terminal and the multiple-antenna node according to at least M of the N pieces of location relationship information, wherein 2≤M≤N, wherein the location relationship change information denotes information about changes of an azimuth and an elevation angle of the mobile terminal relative to the multiple-antenna node, and is used to denote a movement trend of the mobile terminal moving from outdoors to indoors or moving from indoors to outdoors; and controlling the mobile terminal by selecting a control manner matching the location relationship change information and according to the location relationship change information, whereby the control manner is selected corresponding to said movement trend; wherein the obtaining N pieces of location relationship information between a mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals comprises: obtaining N azimuths φ and N elevation angles θ between the mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals, wherein a ground is an x-y plane, a projection of the multiple-antenna node on the x-y plane is an original point, a z-axis is perpendicular to the x-y plane and points upward, a y-axis is parallel to an indoor-outdoor interface, and an x-axis is perpendicular to the y-axis and points to an outdoor direction; φ is an angle between a straight line k1 and a positive direction of the x-axis, and the straight line k1 is a connecting line between a projection of the mobile terminal on the ground and the original point; and θ is an angle between a straight line k2 and a negative direction of the z-axis, and the straight line k2 is a connecting line between the mobile terminal and the multiple-antenna node. receiving, by a mobile terminal, N direction-finding signals that are respectively sent by a multiple-antenna node at N moments, wherein the multiple-antenna node is located in an indoor-outdoor critical area; obtaining N pieces of location relationship information between the mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals, wherein the N moments and the N pieces of location relationship information are in a one-to-one correspondence; determining location relationship change information between the mobile terminal and the multiple-antenna node according to at least M of the N pieces of location relationship information, wherein 2≤M≤N, wherein the location relationship change information denotes information about changes of an azimuth and an elevation angle of the mobile terminal relative to the multiple-antenna node, and is used to denote a movement trend of the mobile terminal moving from outdoors to indoors or moving from indoors to outdoors; and controlling the mobile terminal by selecting a control manner matching the location relationship change information and according to the location relationship change information, whereby the control manner is selected corresponding to said movement trend; wherein the obtaining N pieces of location relationship information between a mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals comprises: obtaining N azimuths φ and N elevation angles θ between the mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals, wherein a ground is an x-y plane, a projection of the multiple-antenna node on the x-y plane is an original point, a z-axis is perpendicular to the x-y plane and points upward, a y-axis is parallel to an indoor-outdoor interface, and an x-axis is perpendicular to the y-axis and points to an outdoor direction; φ is an angle between a straight line k1 and a positive direction of the x-axis, and the straight line k1 is a connecting line between a projection of the mobile terminal on the ground and the original point; and θ is an angle between a straight line k2 and a negative direction of the z-axis, and the straight line k2 is a connecting line between the mobile terminal and the multiple-antenna node. obtaining N azimuths φ and N elevation angles θ between the mobile terminal and the multiple-antenna node at the N moments according to the N direction-finding signals, wherein a ground is an x-y plane, a projection of the multiple-antenna node on the x-y plane is an original point, a z-axis is perpendicular to the x-y plane and points upward, a y-axis is parallel to an indoor-outdoor interface, and an x-axis is perpendicular to the y-axis and points to an outdoor direction; φ is an angle between a straight line k1 and a positive direction of the x-axis, and the straight line k1 is a connecting line between a projection of the mobile terminal on the ground and the original point; and θ is an angle between a straight line k2 and a negative direction of the z-axis, and the straight line k2 is a connecting line between the mobile terminal and the multiple-antenna node.