The waste liquid collection system conforms to the laboratory safety technical specifications. lt has a full range of conductive plasic products, compatible with chemical corrosion resistance, precise technology, with alarm device, and leak prevention rate of 99.8%, When the liquid level of one of the waste iquid safety buckets exceeds 90%, the float of the liquid level warning cap triggers acoustooptic alarm, prompting users to close the flow control valve in time, unscrew the waste liquid safety cap, replace the waste liquid safety bucket, trigger the dual-channel acoustooptic alarm and output the action signal of the switch to the back-end networking equipment for networking or control. Safe collection of harmful waste liquids from laboratories can effectively eliminate the potential hazards caused by harmful waste liquids: in particular, some chemical reagents are extremely flammable, have the potential risk of fire or cause acute or chronic harm to the health of technicians. It is widely applicable to laboratory, biochemical, pharmaceutical research, etc., protecting technicians from harmful substances in their work.