The invention particularly relates to a radio-frequency coaxial connector capable of rotating and positioning by 360 degrees. The radio-frequency coaxial connector comprises a rotation part and a fixed part, wherein the rotation part and the fixed part are matched by a pin hole and are coaxially plugged integrally, a connection position of the rotation part and the fixed part are axially fixed bya C-shaped clamping ring, the rotation part can rotate around a central axis of the fixed part by 360 degrees, the pin hole matching is in interference fit, the rotation part comprises an inner conductor and a rotation part shell, the inner conductor and the rotation part shell cannot rotate relative to each other, a right end of the inner conductor is in a frustum shape, the fixed part comprisesa jack body and a fixed part shell, the jack body and the fixed part shell cannot rotate relative to each other, and a jack is arranged in a left end of the jack body and is in complete contact with aright end of the inner conductor to achieve electrical conduction. The pin hole matching between the rotation part and the fixed part is in interference fit connection, the friction force is higher than traditional clearance fit connection, so that the coaxial connector is compact and reliable to position after rotation, and the positioning effect is good.