A wire connection terminal holding structure includes an insulation outer case and a conductive holding frame disposed in the outer case. The outer case is formed with a wire socket and a perforation. The holding frame includes an electrical connection member and elastic members respectively disposed on two sides of the electrical connection member. Each of the elastic members extends to form a holding section. The holding sections extend toward each other to define therebetween a holding mouth corresponding to the wire socket and a wire insertion space positioned between the holding sections in communication with the holding mouth. A split is formed between top edges of the holding sections. A pushbutton is disposed in the perforation for pushing and opening/closing the holding mouth. A stop section is disposed on at least one of the holding sections of the elastic members for blocking the split.