The invention discloses a peanut combine harvester, which comprises a frame, clamping and conveying devices, digging devices, soil removing devices, fruit picking devices, a transverse conveying device, a cleaning device, a lifting and flow guide device, and a peanut plant discharge device, wherein a power walking device is installed at the bottom of the frame; the clamping and conveying devices are obliquely installed on the frame; the digging devices are respectively installed at the front lower ends of the two clamping and conveying devices; the soil removing devices are respectively installed at the rear parts of the two digging devices; the fruit picking devices are respectively installed at the rear parts of the two soil removing devices; the transverse conveying device is installed between the fruit picking devices on two sides; the cleaning device is installed below the outlet end of the transverse conveying device; the lifting and flow guide device is installed at the outlet end of the cleaning device; and the peanut plant discharge device is installed at the rear part of the fruit picking devices and is connected with the clamping and conveying devices. The peanut combine harvester has the advantages that the structure is reasonable, the harvester works stably, the soil adaptability is strong, the fruit crushing rate during operate is low, the fruits are thoroughly picked, the harvesting rate is high, the peanut plants are tidily discharged, the treatment after harvesting is facilitated, the automation level and the operating efficiency are high, and the harvester is suitable for harvesting peanuts planted in large area.