The invention relates to a heat-preserving and cooling dual-purpose cup. The heat-preserving and cooling dual-purpose cup comprises a cup cover and a dual-purpose cup body which are mutually connected, wherein the dual-purpose cup body comprises an inner cup wall, a heat-preserving layer, anouter cup wall and a plurality of movable heat-dissipating assemblies, wherein the heat-preserving layer is arranged between the inner cup wall and the outer cup wall; the movable heat-dissipating assemblies are uniformly arranged on the outer cup wall; in a heat-preserving state, the movable heat-dissipating assemblies are parallel to the inner cup wall; in a cooling state, the movable heat-dissipating assemblies are vertical to the inner cup wall. Compared with the prior art, the heat-preserving and cooling dual-purpose cup has the advantages as follows: the heat-preserving and cooling dual-purpose cup can achieve heat-preserving and cooling functions at the same time, is flexible to use, convenient to implement and cost-saving and the like.