In 1993, there were 13 large and medium-sized tractor production factories in China, which produced a total of 16 types of tractors, of which: 14 types of wheeled types, 2 types of crawler types, 2 types of skidding types, 3 types of agricultural four-wheel drive types, with a power range of 18.4 ~ 58.9 kilowatts (25 ~ 80 horsepower). The annual output is 47,000 units, of which wheeled tractors account for 64% and crawler tractors account for 36%. Small four-wheel tractors refer to small wheeled tractors with a power of 8.8 to 11 kilowatts (12 to 15 horsepower). There are more than 60 production plants and an annual output of 421,000 units. In 1993, China Agricultural Machinery Company systematically sold 38,500 large and medium-sized tractors and 351,000 walking tractors.

(1)Small four-wheel tractor

Small four-wheel tractors have been produced and used in China for more than 20 years. The number of small tractors in 1993 was 3.71 million, accounting for 47% of the total number of small tractors. Because it adapts to the current rural production system, it is helpful for short-distance transportation in rural areas. In recent years, it has developed rapidly. There are 7 basic models and more than 60 models of small four-wheel tractors.

(2) 18.4～29.4 kilowatts (25～40 horsepower) wheeled tractors

The 18.4 kilowatt (25 hp) wheeled tractor is a variant of the original Dongfanghong-20 wheeled tractor designed by China for the first time in the middle and late 1960s. The 800 and 900RS/DT series 19.1～29.4 kilowatts (26～40 horsepower) wheeled tractors of Italy Goldoni Company introduced by China First Tractor Construction Machinery Company. In addition, there is also the Changchun-400, a modified product of the original Dongfanghong-28 (20.6 kW) wheeled tractor, which is equipped with the 495A-produced by Shanghai Internal Combustion Engine Plant under the condition that most of the original chassis parts remain unchanged. Type 5 diesel engine, change the front and rear tires, and increase the power to 29.4 kW (40 horsepower).

(3) 36.8～47.8 kilowatts (50～65 horsepower) wheeled tractors

The main production plants and models are: the Shanghai-50 tractor produced by Shanghai Tractor Factory for both flood and drought. The fourth modification is the Shangdi-50N, and there is a Shanghai-504 four-wheel drive variant. Newly developed products include the introduction of Fiat (45-60 horsepower) tractors. Tianjin Tractor Factory also imported 2140 and 3140 tractors (80-100 horsepower) from Deere Company of the United States.