By using epidemic dynamic theory

a class of SQIR epidemic model with ecological environment and stage-structure is established

in which the population is divided into two life stages-mature and immature

and the viruses spread only in adult population

while the susceptible group of adult population and active sub adult group of immature population are insulated from the infected area by adopting control strategy. By means of qualitative method and stability method of ordinary differential equations

the boundedness of the model and the existence of nonnegative equilibrium point are analyzed. By constructing proper Lyapunov function and limit system theory

sufficient conditions of the global asymptotic stability of the trivial equilibrium point

disease-free equilibrium point and endemic equilibrium point are obtained. The results show that: when the basic reproduction number is less than or equal to 1

all populations tend to be extinct; when the basic reproduction number is greater than 1 and satisfy certain conditions

the viruses will be cleared; when the dominant regeneration number of the viruses is greater than 1 and satisfy certain conditions

the viruses continue to prevail and will become a local disease.