The effects of five new combustion stabilizers with high-melting point,WB,WC,ZrB₂,ZrO₂ and SiC on combustion performances of screw extrusion double-based propellant were investigated. The results show that the WB,WC,ZrB₂ and ZrO₂ make the burning rate of the control formulation enhanced. The catalytic ability of ZrB₂ and ZrO₂ increases with the decrease of their particle size. The ZrO₂ with particle size of 2.07 μm makes the burning rate at 7 MPa of the control formulation increase by 73%. The highest increase in burning rate of various formulations is exhibited at the pressure of about 7 MPa. The WB and ZrB₂ make the pressure plateau of combustion move to higher pressure range. The ZrO₂ with particle size of 2.07 μm makes the pressure exponent of the control formulation decrease from 7 MPa to 13 MPa and pressure plateau widen to 13 MPa. The SiC and WC make the pressure exponent of the control formulation increase and keep lower pressure plateau.