Abstract: Sweet maize is a kind of corn variety specially for fruit and canned food processing. It has distinctive characteristics such as high nutritional value, soft and sweet, and good palatability. It has a very wide audience in the modern agricultural market. However, due to the constraints of economy, science and technology, the planting of sweet maize in many areas still tends to the traditional management mode. The mechanization level lags behind, the technical standard is low, and the planting cost is high, which seriously restricts the development of sweet maize industry. It is necessary to develop and design a compound planting machine integrating infiltration irrigation, sowing and fertilization from the perspective of practice.