A method of placing an Access Point, AP, comprising: obtaining a sampling point matrix by performing sampling in a locating area based on a preset sampling spacing, wherein the locating area comprises: a valid area to be covered by a Wireless Local Area Network, WLAN, and an invalid area outside the valid area; calculating a maximum valid signal strength, wherein the maximum valid signal strength is a maximum value of a sum of signal strengths generated at sampling points by an AP placed at a sampling point; sequentially selecting a sampling point without AP being placed from the sampling point matrix to be a first sampling point for an AP to be placed, calculating a newly-added valid signal strength and a newly-added invalid signal strength in a case that the AP to be placed is placed at the first sampling point, wherein the newly-added valid signal strength is a sum of newly-added signal strengths generated at sampling points in the valid area by the AP to be placed, the newly-added invalid signal strength is a sum of newly-added signal strengths generated at sampling points in the invalid area by the AP to be placed; placing the AP to be placed at the first sampling point when preset conditions are satisfied, wherein the preset conditions comprise that: a ratio obtained by dividing the newly-added valid signal strength by the maximum valid signal strength is more than a preset valid signal strength ratio threshold, and a ratio obtained by dividing the newly-added invalid signal strength by the maximum valid signal strength is less than a preset invalid signal strength ratio threshold. obtaining a sampling point matrix by performing sampling in a locating area based on a preset sampling spacing, wherein the locating area comprises: a valid area to be covered by a Wireless Local Area Network, WLAN, and an invalid area outside the valid area; calculating a maximum valid signal strength, wherein the maximum valid signal strength is a maximum value of a sum of signal strengths generated at sampling points by an AP placed at a sampling point; sequentially selecting a sampling point without AP being placed from the sampling point matrix to be a first sampling point for an AP to be placed, calculating a newly-added valid signal strength and a newly-added invalid signal strength in a case that the AP to be placed is placed at the first sampling point, wherein the newly-added valid signal strength is a sum of newly-added signal strengths generated at sampling points in the valid area by the AP to be placed, the newly-added invalid signal strength is a sum of newly-added signal strengths generated at sampling points in the invalid area by the AP to be placed; the newly-added valid signal strength is a sum of newly-added signal strengths generated at sampling points in the valid area by the AP to be placed, the newly-added invalid signal strength is a sum of newly-added signal strengths generated at sampling points in the invalid area by the AP to be placed; placing the AP to be placed at the first sampling point when preset conditions are satisfied, wherein the preset conditions comprise that: a ratio obtained by dividing the newly-added valid signal strength by the maximum valid signal strength is more than a preset valid signal strength ratio threshold, and a ratio obtained by dividing the newly-added invalid signal strength by the maximum valid signal strength is less than a preset invalid signal strength ratio threshold. a ratio obtained by dividing the newly-added valid signal strength by the maximum valid signal strength is more than a preset valid signal strength ratio threshold, and a ratio obtained by dividing the newly-added invalid signal strength by the maximum valid signal strength is less than a preset invalid signal strength ratio threshold.