A protection member and conductive plate assembling structure of rail terminal includes a conductive plate (1, 3, 5) having two assembling ends (11, 31, 51) and a protection member (2, 4, 6) connected with each assembling end (11, 31, 51). Two lateral sides of the assembling end (11, 31, 51) are respectively formed with a locating section (12, 32, 52) and a connected section (13, 33, 53). The protection member (2, 4, 6) has an assembling passage (25, 45, 65) for the assembling end (11, 31, 51) to extend therein. A located section (241, 441, 641) and an elastic connection section (223, 422, 622) are respectively disposed on two sides of the assembling passage (25, 45, 65) corresponding to the locating section (12, 32, 52) and the connected section (13, 33, 53). When assembled, the locating section (12, 32, 52) and the located section (241, 441, 641) are engaged with each other. Then the conductive plate (1, 3, 5) is turned to make the connected section (13, 33, 53) push and elastically deform the elastic conne
