Abstract: The present invention relates to a horizontal top-bar beehive consisting of a hive box, supporting structures, a hinged insulated top, a hinged top support structure, and a top and bottom ventilation system that provides ambient temperature and moisture control. The beehive contains top-bars reinforced to reduce comb breakage during comb removal. The insulated hinged top is metal cladded to protect the hive from elements and its insulation prevents condensation in winter. The insulated top and advanced ventilation system reduces or eliminates beehive winter mortality and the need for extensive wrapping or insulating of the hive in preparation for winter. The top support structure facilitates top removal and prevents hive contamination and infestation by preventing the top from resting on the ground.