A rotatable connector for telephone transmitter, especially one which prevents the transmitter conductor from twisting, includes: a housing; a clip connecting plug for inserting into the transmitter; a rotation seat for inserting and placing into the housing and connecting with an extension conductor to electrically connect with the clip connecting plug; some sets of annular guide pieces composed of some semi-circular piercing guide pieces and some semi-circular guide pieces being fixed onto the rotation seat; and a jack for transmitter conductor being fitted in the housing and having some electrically conducting spring strips embedded thereon; In this structure, the jack for transmitter conductor can rotate freely relative to the rotation seat, while still keeps the spring strips in electric connection with the annular guide pieces.