The invention discloses an energy-saving fireproof window, which comprises a profile, fireproof hollow glass and an installation assembly. The profile comprises a first profile, a second profile, a third profile, a fourth profile, a fifth profile and a sixth profile, and the first profile and the second profile are combined to form a window frame assembly; the third profile and the fourth profileare combined to form a window sash assembly; the fifth profile and the sixth profile are combined to form a muntin assembly, and the window sash assembly is hinged to the window frame assembly; the installation assembly comprises first buckles, second buckles and glass fixing parts; the window frame assembly, the window sash assembly and the muntin assembly are fixedly connected with the first buckles and the glass fixing parts correspondingly, and the fireproof hollow glass is fixed between the first buckles and theglass fixing parts; and the second buckles are connected with the first buckles in a buckled mode. According to the energy-saving fireproof window, a mode of profile combination is adopted to form the fireproof window, the structure is simple, and manufacturing is convenient; and meanwhile heat insulation materials are arranged on a window frame profile, a window sash profile and a muntin profile correspondingly, exchange of the indoor and outdoor air temperature is avoided, and thus fireproof performance is ensured and energy saving is achieved.