To address the issues of large in-process quantities and strict pot-life demands of slurry in traditional one-pot propellant slurry mixing， a static mixer mixing technique was designed and developed. In this technique， the pre-prepared binder slurry and curing agent slurry are stored separately in reservoirs， metered by screw pumps， extruded into a static mixer for blending， and then directly cast. Computational Fluid Dynamics （CFD） simulations were used to generate cloud images of the mixing process of a two-component slurry in a static mixer under typical conditions. A two-component curing system suitable for the static mixer mixing process was designed and synthesized. Based on this curing system， using K₂SO₄ and CaCO₃ as simulated oxidizers， a simulated oxidizer propellant with a solid content of 85% and without the addition of a bonding agent was prepared via the static mixer mixing process. The mechanical properties and microstructure of the propellant were characterized. Results indicate that the static mixer achieved homogeneous mixing of the two-component slurry. The resulting propellant exhibited a tensile strength of 0.4 MPa and an elongation at break of 37.5%， with a fracture surface that was dense and uniform， showing no cracks or voids. The static mixer mixing process offers advantages of small in-process quantity and no requirement for pot life of the slurry.