The present invention provides antenna power measuring method and device. It contains setting at least one metered end point in distance of tested aerial, firstly making antenna transmit-receive electric wave signal, then measuring said aerial transmit receive electric wave signal first power value, then measuring the metered end point, thereby obtaining second power value of said metered end point coupling said aerial electric wave signal, calculating said first power value with second power value coupling ratio value, for determining said tested aerial transmitting/receiving power. The present invention also can survey built-in aerial transmitting/receiving power without increasing other testing coupling device or connector etc component. |