Transmitting power adjusting method, device and system

The invention discloses a transmitting power adjusting method, device and system. The method is suitable for electronic equipment provided with a plurality of antennas. In the process that the electronic equipment uses multiple antennas to transmit signals or before the multiple antennas are used to transmit the signals, the electronic equipment can judge whether to transmit the signals according to the preset transmitting power of the electronic equipment or not according to the position relation among the antennas, if the distance between the antennas is long, the antennas transmit the signals according to the preset transmitting power, and if the distance between the antennas is not long, the antennas transmit the signals according to the preset transmitting power. And if the distance between the antennas is relatively short, the electronic equipment reduces the transmitting power of the antennas. Therefore, the communication performance can be improved as much as possible on the premise of ensuring that t