Grain crop emasculation device

The invention relates to a grain crop emasculation device, which includes a casing. The casing is internally provided with an air pump, an anther collecting bottle and a power supply. The air pump is connected to the anther collecting bottle through an air suction pipe, the anther collecting bottle is provided with a hose that passes through the caseing and is used for extracting anther, the anther collecting bottle is also provided with a bottleneck, the bottleneck goes through the casing and is then detachably connected to a seal cover. The power supply is in electrical connection with the air pump. Through the air pump, the grain crop emasculation device can suck anther into the anther collecting bottle through the hose, realizes rice emasculation function, and has the characteristics of high emasculation operation efficiency and high precision.