In order to improve the crack resistance of high-performance recycled aggregate concrete (HPRAC) beams made of artificial sand, this paper uses 100% artificial sand and different types of admixtures to make specimen beams. ANSYS finite element analysis software is used to simulate HPRAC beams made of artificial sand with different admixtures, obtain the cracking, yield load and deflection of the specimen beams, as well as the development of beam cracks. And analyze the mechanical properties and crack resistance of HPRAC beams with artificial sand mixed with different types of admixtures. The research results indicate that the addition of active admixtures can effectively improve the crack resistance of HPRAC beams made of artificial sand, and the mechanical and crack resistance of HPRAC beams with artificial sand mixed with mineral powder, silicon powder, and microsphere powder are significantly improved.