Based on the characteristics of AIDS transmission, this paper subdivided the susceptible population into susceptible people with high-risk behaviors and ordinary susceptible people, and considered the impact of drug blockade on AIDS transmission, and established a dynamic model of infectious disease with drug blockade. Firstly, the forward invariant set was obtained, the basic regeneration number was calculated by using the next-generation matrix method, and then the two types of equilibrium points were solved, and the two types of equilibrium points were proved to be globally asymptotic stable according to the Hurwitz criterion and the Lyapunov function. Through numerical simulation and sensitivity analysis, it is found that reducing the failure rate of HIV blocking drugs and increasing the proportion of patients taking blocking drugs within 72 hours after engaging in high-risk behaviors can reduce the basic reproduction number, so as to reduce the number of patients infected with HIV, so as to effectively control the spread of the disease.
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