The invention relates to a novel ground condition adaptation type bouncing power leg of a hopping robot. The novel ground condition adaptation type bouncing power leg is characterized in that a horizontal supporting plate is included, a bouncing leg is arranged in the centre of the supporting plate and comprises a pedal, the upper portion of the pedal is connected with a spring guide column and a releasing rod, the spring guide column is sleeved with a power spring, the lower end of the power spring presses the pedal, and the upper end of the power spring abuts against the supporting plate. First external power drives the power spring to be compacted and store energy. The upper end of the pedal is respectively hinged to a pair of symmetrical second connecting rods, the upper ends of the second connecting rods are connected with the end portions of a rhomboid connecting rod mechanism through rotating pairs respectively, the rhomboid connecting rod mechanism is fixedly connected with a horizontal gear rack, the gear rack is meshed with a gear, and a gear and gear rack transmission mechanism is formed. The upper ends of the second connecting rods are connected with vertical ejector rods through rotating pairs, the ejector rods are fixedly connected with the supporting plate, the upper ends of the ejector rods are hinged to connecting rods, the connecting rods are hinged to dead point push rods, and the dead point push rods are arranged in vertical dead point push rod guide sleeves in a hollow sleeved mode.