The purpose of the present invention is to provide : a polymerizable liquid crystal composition which rarely undergoes the change in the optical performance thereof even when irradiated with high-intensity ultraviolet ray and can be highly polymerized; and a phase difference plate which includes a liquid crystal cured layer made from a polymer of the polymerizable liquid crystal composition, has high optical performance, and rarely undergoes the change in the performance thereof even under severe conditions. A polymerizable liquid crystal composition containing at least two polymerizable liquid crystal compounds, wherein at least one of the polymerizable liquid crystal compounds is a polymerizable liquid crystal compound (A) as mentioned below and at least one of the polymerizable liquid crystal compounds is a polymerizable liquid crystal compound (B) as mentioned below. The polymerizable liquid crystal compound (A) : a polymerizable liquid crystal compound such that a polymer of the polymerizable liquid crystal compound in which the polymerizable liquid crystal compound is oriented exhibits a reverse wavelength dispersion property and the phase difference value [R(A, 3000, 450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 3000 mJ/cm2 varies in a positive sense relative to the phase difference value [R(A, 500, 450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 500 mJ/cm2; the polymerizable liquid crystal compound (B) : a polymerizable liquid crystal compound such that a polymer of the polymerizable liquid crystal compound in which the polymerizable liquid crystal compound is oriented exhibits a reverse wavelength dispersion property and the phase difference value [R(B, 3000, 450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 3000 mJ/cm2 varies in a negative sense relative to the phase difference value [R(B, 500, 450)] at a wavelength of 450 nm which is measured after the irradiation of the polymerizable liquid crystal compound in an oriented state with ultraviolet ray at 500 mJ/cm2.