A kind of blood pressure measurement device of applicable what difference size armband. Above-mentioned blood pressure measurement device includes: a shell, an armband, one first low speed air escape valve, one second low speed air escape valve and an air communication component. Air communication component has at least one first interconnecting part, one second interconnecting part and a third connecting portion. In first low speed air escape valve, the second low speed air escape valve and air communication component setting what shell, the first interconnecting part couples armband, and the second interconnecting part couples the first low speed air escape valve, and third connecting portion couples the second low speed air escape valve.一種可適用於不同尺寸臂帶的血壓量測裝置。上述血壓量測裝置包括：一殼體、一臂帶、一第一慢速洩氣閥、一第二慢速洩氣閥及一空氣連通組件。空氣連通組件具有至少一第一連通部、一第二連通部及一第三連通部。第一慢速洩氣閥、第二慢速洩氣閥及空氣連通組件設置於殼體內，第一連通部耦接臂帶，第二連通部耦接第一慢速洩氣閥，第三連通部耦接第二慢速洩氣閥。
