The invention relates to an LED streetlamp electric power carrier control realization method and system. The method comprises the following steps of performing storage unit information initiation on an LED streetlamp carrier controller; reading a location value of the carrier controller and storing the location value into a storage unit therein; entering UID numbers of the corresponding number toa software control editing system according to the number of the LED streetlamps; sequentially outputting each UID number to each storage unit; and transmitting a storage unit information reading instruction to the carrier controller of each LED streetlamp to obtain the serial number data of the carrier controller of each LED streetlamp. Therefore, overall entering, issuing and reading confirmation of the UID numbers can be realized; a series of problems of copy leakage, wrong copy, mistake copy and the like of the UID numbers can be solved, and debugging of project engineering can be performed conveniently; in addition, UID number coding in replacement of the faulty single-lamp controller can be facilitated, so that only a part of the large number of LED streetlamps of a road can be maintained, without causing mistake easily, and construction operation can be convenient.