To investigate the effect of adding plastic particles on the fracture behavior of concrete, three-point bending tests were conducted on concrete with polypropylene particles. The effects of different amounts of polypropylene particles on the compressive strength, tensile strength, flexural properties, elastic modulus, and fracture energy of concrete were studied. The results showed that compared with plain concrete, the compressive strength of specimens with 10%, 20% and 30% of polypropylene particles decreased by 8.3%, 17.7% and 23.8%, the splitting tensile strength decreased by 10.7%, 21.4% and 31.9%, the peak load decreased by 17.6%, 32.5% and 45.9%, the flexural strength decreased by 18.0%, 32.3% and 46.0%, and the elastic modulus decreased by 22.4%, 42.3% and 53.9%, respectively. For specimens with 0, 10%, 20% and 30% of polypropylene particles, the fracture energy growth rates were 2.4, 11.6, 17.1, 24.9 kN/m, respectively.