Abstract: Two-variable exothermic chemical reaction model with quadratic auto-catalytic reactior mechanism are studied in this paper. A linear heat feedback equipment is added in this model. The concentration of reactant P and the reaction process are regulated and controlled by the interna equipment. It can be seen from the numerical result that the linear heat feedback equipment car control the generation of chemical oscillation, μ(θ)=m₀+m₁(θ-_θc) can determine the reactioi process, in which μis the density of primary reactant, θ_C is,dimensionless temperature, θ_C is contro temperature, m₁ is gain factor, mo is control parameter. When m₀ is same and θ_c is different, thi same reaction state needs different mr Chemical reaction can be produced in schedule by choosing the appropriate θ_C and m₁ It will avoid limit circle phenomena in the chemical production.