The present description relates to a lip seal panel structure for air conditioning equipment capable of manufacturing a housing case for air conditioning equipment without using an intermediate frame. The lip seal panel according to the present disclosure includes a first iron plate and a second iron plate of a same size; a brim located at both ends of the first iron plate and the second iron plate. The brim includes a concave brim and a convex brim in an uneven shape. A lip seal is formed on at least one uneven surface of the concave brim and the convex brim. In this configuration, the concave brim of one lip seal panel and the convex brim of another lip seal panel are coupled and assembled, and when coupled, the lip seal which is a soft elastic material is pressed and maintained in close contact. Therefore, according to the present disclosure, a housing case for air conditioning equipment capable of preventing leakage can be manufactured without using an intermediate frame and a separate gasket for preventing leakage.