EGR structure of gasoline engine

The invention relates to the technical field of automobiles, and particularly discloses a gasoline engine EGR structure which comprises an EGR cooler and an EGR valve, an EGR water inlet pipe is arranged at the liquid inlet end of the EGR cooler, an electronic flow valve is arranged at the end, away from the EGR cooler, of the EGR water inlet pipe, a detection unit is arranged on the electronic flow valve, an EGR water outlet pipe is arranged at the liquid outlet end of the EGR cooler, and the EGR water outlet pipe is connected with the EGR cooler. An EGR air inlet pipe is arranged at the air inlet end of the EGR cooler, the EGR valve is arranged at the air outlet end of the EGR cooler, the air outlet end of the EGR valve is connected with an EGR exhaust pipe, and an EGR temperature sensor is arranged on the EGR valve. The ECU can calculate the needed opening degree of the electronic flow valve according to the exhaust temperature, the EGR refrigerating fluid inlet temperature, the EGR refrigerating fluid inl