The agricultural big data platform created by entrepreneurs utilizes digital means to assist agricultural companies and farmers in providing agricultural production guidance. The picture was provided by the interviewee in the countryside, and Liu Yichen's team found ways to prevent and control pests and diseases. The image was provided by the interviewee, and the mobile phone lens was aimed at a suspected rice ear with pests and diseases. After taking a photo, uploading, and system recognition, a few simple steps were taken, and the types of pests and diseases were displayed on the mobile phone screen at a "second speed". This scene seems to be no different from people usually "sweeping" and asking "Du Niang" on the roadside. In fact, it is a channel for a post-90s youth entrepreneurship team to enter the biological control and explore a new blue ocean of "AI agriculture". Liu Yichen, who is only 29 years old, led the establishment of Hunan Dachuang Agricultural Technology Co., Ltd. and is the leader of this team. The new technology they developed for identifying rice diseases and pests through mobile phones has been vividly referred to by farmers as "plant pocket doctors". In the 10th "Creating Youth" China Youth Innovation and Entrepreneurship Competition (Rural Revitalization Special Project) held this year, they won the gold medal with this technology. Behind the honor lies a group of young entrepreneurs who have worked hard in the vast countryside for 5 years. Liu Yichen, a young maker who loves "invention", has been restless since childhood. During his high school years, he was passionate about invention and creation. He discovered at that time that the hooks commonly used at home, after being fixed with glue or other materials, were not only inconvenient to move elsewhere, but also difficult to adjust direction and combination. So, he created a combination hook that could be combined like a jigsaw puzzle, achieving multiple purposes, successfully obtaining a national patent, and also producing finished products. When he moved, there was no cable TV at home. He thought of the rotating radar on the ship that could receive signals and had the idea of building a receiver. So I found my classmate and raised 200 yuan, bought some parts, assembled a small receiver that can automatically search for signals, and plugged the cable into the signal input port on the TV to search for some TV programs. Seeing Liu Yichen indulging in it, his mother was worried about whether he could successfully enter university and repeatedly went to the Yueyun Middle School where he was studying to find his homeroom teacher and demand "strict control", and forcibly stopped his son's plan to "expand reproduction" of a new television signal receiver. After the college entrance examination, Liu Yichen, who was unable to enter his ideal university, entered Hunan University of Technology to study. When participating in the school's "Three Villages" social practice activity, Liu Yichen, a city girl, saw some rural poverty and was deeply touched. He began to think, can we focus on entrepreneurship in rural areas and achieve a "win-win" situation for his entrepreneurial dream and farmers' desire to become rich? As an attempt, he went to a impoverished village in Hengyang County and bought over 10000 chicken seedlings for farmers to raise. He then promised to recycle the eggs of these local chickens and sell them in the city. After a period of time, the chicks almost died, but few eggs were seen. This made him realize that the enthusiasm of farmers had not been mobilized, and any amount of money would be wasted. He is determined to take a one-year break from school and start an industry in the countryside. After transferring over 100 acres of land from a village, he partnered with others to establish Hengyang Mengchuang Trading Co., Ltd. The start-up funds of the company are borrowed from familiar teachers and friends from the past society