Variable-temperature bin, nucleic acid sequencing equipment and temperature control method of nucleic acid sequencing equipment

The invention provides a variable-temperature bin, nucleic acid sequencing equipment and a temperature control method thereof, the variable-temperature bin is arranged in the nucleic acid sequencing equipment, the variable-temperature bin is provided with at least one temperature control cavity which is insulated from the outside, and the temperature control cavity is used for accommodating an optical analysis system and/or a reaction system of the nucleic acid sequencing equipment; the temperature changing bin comprises at least one temperature changing assembly and at least one temperature sensor, and the at least one temperature sensor is arranged in the temperature control cavity and used for monitoring the real-time environment temperature in the temperature control cavity. The at least one temperature changing assembly is arranged on the side wall of the temperature changing bin so as to adjust the temperature control cavity according to the real-time environment temperature monitored by the at least on