The grain combine harvester is simply referred to as the combine harvester, and according to its English name, it is also called "the combine harvester". It is a grain harvester that can complete the harvesting, threshing, stalking, and impurity removal of grain crops at one time, and obtain grains directly from the field.

As early as 1828, Best Company in the United States proposed the design of combine harvester and walking thresher, and obtained the patent for the first combine harvester in the United States. Small rice combine harvester But Best failed to realize his vision. In 1834, some people in the United States built a prototype of a combine harvester that was powered by animal power and used ground wheels to drive working parts such as the harvester. However, the combine weighed 15 tons and required 40 mules and horses to pull it. It has no practical value.

In 1841, the American Church invented the stallion-style "harvesting and threshing unit" based on summarizing and borrowing from the more successful harvesters and threshers of others. Although its performance is not perfect, it already has the prototype of the modern combine harvester. U.S. farms are huge and labor-poor, so there is an urgent need for efficient harvesting machinery. Many people are working on developing combine harvesters.

Outside the United States, the Russian Gao Fusheng also invented a combine harvester in 1861 and performed it for government officials on September 8 of that year, attracting many people's interest. However, it has not been promoted due to some flaws.

In 1880, the first practical combine harvester was born in the United States. This combine harvester is drawn by animal power, but is equipped with steam power to drive the threshing section. The steam engine was too heavy and interfered with the operation of the field combine harvester, and was soon converted into a small gasoline engine. In 1890, the United States appeared a tractor-pulled combine harvester and the earliest self-propelled combine harvester driven by a steam engine.

However, around 1920, combine harvesters began to be widely used. In the wheat-producing regions of the United States, the combine harvester powered by a gasoline tractor was first popularized for paddy and mud fields. At this time, the combine harvester has the function of wind selection and bagging. The Soviet Union in 1926, the United Kingdom, France, Germany and other countries imported and improved the combine harvester from the United States in 1928. Around 1938, the United States began to popularize the use of self-propelled combine harvesters. By the mid-to-late 1960s, self-propelled combines accounted for 90%-95% of all combine harvesters in the United States. The Soviet Union also stopped the production of trailing combine harvesters and gradually replaced gasoline engines with diesel engines.

The wider the field, the more efficient the combine will be. At present, in large farms all over the world, small wheat combine harvesters can be seen everywhere in the fields of harvest, mechanization of harvesting, baling, threshing, husking and wind selection.
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