The invention discloses a flow-control automatic pouring process for a slab continuous casting stopper rod based on automatic liquid level control. The process is characterized by comprising the following steps of (1) determining conditions of an automatic pouring initiating stage; (2) opening an stopper rod for the first time during automatic pouring; (3) controlling a stopper rod travel processduring an automatic pouring process; (4) starting a casting machine at an automatic pouring final stage; and (5) automatically starting the casting machine, so that the whole automatic pouring processflow is finished. According to the scheme, the problems of hidden dangers of pouring failure production accidents and pouring head billet included slag quality defect caused by instability in controlling emerging time and big steel stream size control fluctuation during the automatic pouring process are solved, a real sense of automatic pouring is realized, and an automation level of a continuouscasting process is improved.