The invention relates to an automatic telescopic frame of a soccer robot goalkeeper. The automatic telescopic frame comprises a hardware rack system and a motor power control system; the hardware rack system comprises a left side beam, a right side beam and a top beam of the goalkeeper, wherein the left side beam and the right side beam are respectively connected to a side cross beam through connecting rods; one end of each side cross beam is provided with a sliding chute and a sliding block which slides along the sliding chute; the sliding blocks are connected with a crank through screws and can rotate relative to the crank, and the other side of the crank is connected to a motor; the motor power control system comprises an infrared distance measurement sensor and a master control circuit board. The automatic telescopic frame improves the defensive ability of the goalkeeper, and is free of complex mechanical structures, thereby being convenient to control accurately, fast in response, and quite easy to produce on a large scale.