The invention discloses a remote control stepping detection apparatus for a ceramic insulator insulation resistor and a detection method thereof, so that problems of slow detection speed and high altitude construction dangers in the prior art are solved. An on-site detection staff climbs a power transmission iron tower with the device or the detection personnel stands on the ground and lifts the device to be the position right below an insulator chain by means of using an insulating rod. The positions of a rotation paw left supporting seat 13 and a rotation paw right supporting seat 18 are adjusted; a left rotation paw 15 is made to hold tightly a first insulator iron cap 40 by means of operating a remote control and display 6. A right rotation paw 20 holds a third insulator iron cap 43. The insulation resistance value of a first insulator is thus measured. Sequential stepping of the left rotation paw 15 and the right rotation paw 20 is realized by means of utilizing mutual movements of the left rotation paw supporting seat 13 and the right rotation paw supporting seat 18, and measurement of insulation resistance of each insulator is completed.