Due to the limited space in the sunlight greenhouse,it is difficult for ordinary transportation trucks to enter.Traditional transportation of vegetables in the sunlight greenhouse uses manual small flatbed trucks,which have a small volume and can flexibly enter and exit the greenhouse for cargo transportation.The disadvantage is that manual transporta-tion is labor-intensive,and the number of fruits and vegetables transported each time is relatively small,making it difficult to meet transportation needs during peak picking periods,Therefore,there is an urgent need to develop a transport vehicle that can transport a large amount of goods.This paper introduces a multifunctional flat transport vehicle for solar green-houses based on the STM8 microcontroller.This flat transport vehicle can be manually driven like a regular electric flat car,and can also be manually driven to the dedicated track of the solar greenhouses for remote control of forward start,re-verse start,stop,acceleration,deceleration,and other controls,It can be used for transporting fruits and vegetables in solar greenhouse and also for spray in solar greenhouse.