The invention relates to the technical field of fixing frames, in particular to an LED lamp fixing structure. The LED lamp fixing structure comprises a fixing frame and a lamp holder. The lamp holderis provided with an LED lamp lighting panel, the LED lighting panel is provided with an LED light source plate, the lamp holder is provided with internally-connected threaded opening groups. The fixing frame is provided with a fixing base, the fixing base is provided with thread through hole groups, the fixing base is connected with fixing rods, the fixing rods are connected with fixing horizontalplates, and the fixing horizontal plates are provided with thread through hole groups. The first internally-connected threaded opening groups and the second internally-connected threaded opening groups which are formed at the bottom end of the lamp holder and the third thread through hole groups formed on the first fixing horizontal plate and the fourth thread through hole groups formed on the second fixing horizontal plate are arranged correspondingly, the lamp holder and the first fixing horizontal plate and the second horizontal plate can be fixedly connected through fixing bolts, the stability of the LED lamp holder is ensured, the fixing frame can connect with other components through the first thread through hole groups and the second thread through hole groups which are formed on the fixing base, the use of other tools can be met, and the LED lamp fixing structure is economical and convenient.