An adjustable respiratory mask includes a nasal cover (1) and a forehead fixing base (2). The nasal cover (1) includes a frame assembly (11) and a cover body (12). The frame assembly (11) has an upright frame (111) and an adjustable support (112) extending from the upright frame (111). The upright frame (111) is connected to the cover body (12). The adjustable support (112) is a plastic piece and inclined relative to the upright frame (111). The forehead fixing base (2) has a base body (21) provided with a receiving portion (213). The adjustable support (112) penetrates the receiving portion (213) to allow the base body (21) to adjustably move. Thus, the respiratory mask of the present invention can fit face contours of different users, so that the users can feel more stable and comfortable when wearing it.本創作係關於一種可調式呼吸面罩,此呼吸面罩,包括一鼻罩及一額頭固定座,鼻罩包含一框架組件及一罩體,框架組件具有一直立框及自直立框延伸的一調整式支架,直立框連接於罩體,調整式支架為一可塑性片體並相對直立框呈傾斜配置;額頭固定座具有一座體,座體設有一承接部,調整式支架穿接承接部且能夠供座體調整移動。藉此,調整式支架調整鼻罩與額頭固定座之間的間距,並藉由調整式支架為可塑性片體並與直立框呈傾斜配置,同時調整鼻罩與額頭固定座之間的角度,進而符合不同使用者之臉型,達到佩帶時具有較佳之穩定性及舒適性之功效。