An electronic implement replacement structure includes a housing body (102) and an electronic module (300). The housing body (102) has a base (110) and a connecting ring (120) connected to the base (110). The connecting ring (120) includes press portions (124) and notches (122) spaced apart from one another and respectively disposed between each two adjacent press portion (124). A guiding groove (126) is formed on an outer surface of each of the press portions (124). The electronic module (300) is disposed on the base (110) and corresponding to the connecting ring (120). The electronic module (300) includes an electronic unit (310) and a rotatable ring (330) enclosing the electronic unit (310). An inner wall of the rotatable ring (330) has a sliding block (332) correspondingly and rotatably engaged with the guiding groove (126). Therefore, assembling and disassembling can be achieved without any tools.