Abstract: A heating and refrigerating device (100) comprises a base (2), a heating unit (3), a guide unit (4), a temperature adjustment unit (5), a heat conduction bottom plate (6), and multiple refrigerating chips (9). The heating unit (3) is disposed on the base (2). The guide unit (4) is disposed on the heating unit (3). The temperature adjustment unit (5) is disposed in the guide unit (4) in a pluggable manner. The heat conduction bottom plate (6) is disposed on the guide unit (4). In the heating and refrigerating device (100), by using the design of the heating unit (3), the temperature adjustment unit (5) and the refrigerating chips (9), the effect of instant refrigeration or instant heating can be achieved.