The invention relates to a method for constructing support grouting material in winter, which comprises the following steps: performing the non-contact uniform heating treatment of the surfaces of parts to be combined with a heat source to raise the temperature of the parts to be combined to 5 to 40 DEG C during grouting construction; when heating the parts to be combined, mixing a liquid grouting material with hot water to ensure the discharge temperature of the grouting material reaches 5 to 30 DEG C; filling the grouting material from the central part of a bottom plate of the support to the periphery of the bottom plate till the parts to be combined are fully filled with the grouting material; and instantly heating the parts to be combined for maintenance for 24 hours, keeping the temperature of the core part of slurry (grouting material) above 5 DEG C constantly within 24 hours, and finally, removing the heating maintenance, and performing the normal maintenance of the parts to be combined. The methods overcomes the drawbacks of the prior art, simplifies operation, greatly improves construction efficiency, and has wide application prospects in high-speed railways under larger-scale construction.