Magnetic attraction type automobile charging plug in automatic butt joint

The invention relates to a magnetic attraction type automobile charging plug in automatic butt joint, and belongs to the field of electromobile charging equipment. The charging plug comprises a soleplate, a guide rod, a pressure spring, radial extension springs, a main joint assembly, a female joint assembly and a corrugated pipe; the soleplate is fixedly arranged an automobile body, the main joint assembly is fixed to the guide rod, the guide rod is cooperated with the soleplate via a linear bearing, a stopper ring is mounted in the end portion of the guide rod, the pressure spring sleeves the guide rod, one end of the pressure spring abuts against the backside of the soleplate, the other end of the pressure spring makes contact with the stopper ring in the end portion of the guide rod, and the pressure ring bears a pressure; the radial extension springs bear a pulling force, one end of each radial extension spring is connected with the soleplate, and the other end of the same is connected with the male join