A pulse radar system includes: a pulse output circuit that outputs a periodic transmission pulse and a gate pulse having a cycle which is a rational multiple of a cycle of the transmission pulse and is different from a cycle of the transmission pulse; a transmission circuit that generates and sends a transmission pulse wave based on a transmission pulse from the transmission circuit; a transmission antenna that radiates a transmission pulse wave from the transmission circuit; a reception antenna that receives a reception pulse wave reflected from an object in transmission pulse waves from the transmission antenna; a reception circuit that demodulates a reception pulse wave from the reception antenna and outputs a reception pulse; and an extracting circuit that extracts and outputs a reception pulse synchronizing with a gate pulse from the pulse output circuit, among reception pulses from the reception circuit.