This creation system discloses the safety alarm device that one kind is suitable for intravenous injection adjuster, wherein intravenous injection adjuster includes governor body, regulating part and groove, run through the both ends of governor body to injection for intravenous pipeline, wherein the movable setting what of regulating part system is injected intravenously in the groove of adjuster, with adjustment intravenous injection pipeline and his like speed. The safety alarm device of this creation includes at least: the guard member that is injected intravenously adjuster is detachably arranged, is inadequately adjusted to avoid intravenous injection pipeline and his like speed; And the sensing alarming device in setting what guard member, to sense movement of the guard member relative to intravenous injection adjuster to issue alerting.本創作係揭露一種適用於靜脈注射調節器之安全警示裝置,其中靜脈注射調節器包含調節器本體、調節件以及凹槽,用以供靜脈注射管路貫穿調節器本體之兩端,其中調節件係可動式設置於靜脈注射調節器之凹槽中,以調整靜脈注射管路之流速。本創作之安全警示裝置至少包含:可拆式地設置於靜脈注射調節器之保護件,以避免靜脈注射管路之流速被不適當地調整;以及設置於保護件上之感測警示裝置,用以感測保護件相對靜脈注射調節器之移動以發出警示訊號。