A casement window made of thermal break aluminum alloy is a common door and window product, crafted from thermal break aluminum alloy profiles. It features insulation, heat preservation, waterproofing, dustproofing, and soundproofing capabilities. The opening method of the casement window is to slide inward or outward, suitable for ventilation, lighting, and landscape viewing. It is characterized by its simple structure, easy installation, flexible use, and good sealing and anti-theft performance. When designing and installing thermal break aluminum alloy casement windows, factors such as window size, material, type, opening method, sealing performance, and anti-theft performance should be considered to meet the actual needs of users. Additionally, attention should be given to the aesthetic appeal and overall style coordination to match the architectural style and enhance the overall quality of the building.