Abstract: Control platform for poultry house ventilation system based on large-scale breeding was designed.App terminal was used as remote control terminal.Field hardware control terminal was designed based on STM32F103 single chip microcomputer and peripheral function modules.Time-sharing reservation control and real-time monitoring of field hardware control terminal were completed by App terminal or manual setting of function keys，field hardware control terminal completed single channel AC input and multi-channel AC output control for subsequent multi-channel ventilation exhaust fan working states.Platform was flexible and simple for large-scale poultry house ventilation.