The invention discloses a multispectral response light-emitting material and a preparation method thereof, and relates to the field of inorganic photoluminescence materials. The light-emitting material has the following general formula: (Yb1-x-yEuxEry)2O2S, wherein x is greater than or equal to 0.005 but is less than or equal to 0.02, and y is greater than or equal to 0.005 but is less than or equal to 0.02. The light-emitting material has extremely high light absorption and energy transfer efficiency, responds to light at different wave bands, and realizes multi-functionalization of a single light-emitting material. The preparation method of the light-emitting material comprises: according to the radio of (1-x-y) to x to y, dissolving Yb(NO3)3.5H2O, Eu(NO3)3.6H20 and Er(NO3)3.5H20 in absolute ethyl alcohol; adding polyvinylpyrrolidone and thiourea; and placing an obtained system in a high pressure reactor, performing heat preservation at 200-240DEG C for 24-40 hours, and cooling to room temperature. The method has low synthesis temperature, and is easy to operate.