NOVELTY - A milk antibacterial drugs detection method involves processing sample by accurately measuring milk, diluting 10-40 mmole/l phosphate solution, mixing, centrifuging, filtering supernatant. Solid-phase micro-extracting process is performed by taking the supernatant of the milk into small bottle, putting the sample solution to be detected into extracting column. Sample analysis step is performed. The sample is derived by adding hexanoate solution to target analyte, adding light amine derivative reagents. The sample detection step is performed by separating derived target analyte solution.    USE - Method for detecting milk antibacterial drugs (claimed) that is utilized in environmental analysis and food safety field.    ADVANTAGE - The method enables detecting milk antibacterial drugs with high sensitivity and less time consumption, in a simple, rapid, eco-friendly and accurate manner.    DETAILED DESCRIPTION - A milk antibacterial drugs detection method involves processing sample by accurately measuring 1-5 ml milk, diluting 10-40 mmole/l phosphate solution with pH of 3-6 to 10-50 ml, uniformly mixing, centrifuging, filtering supernatant by using filter film and storing 5 ml supernatant into 5 ml brown bottle. Solid-phase micro-extracting process is performed by taking the supernatant of the milk into 1-500 mu l small bottle, putting the sample solution to be detected into extracting column under pressure, leaving the target analyte in the capillary within the extraction phase, placing tube in outflow end and collecting the solution flowing through the extraction column. Sample analysis step is performed by adding 5-50 mu l solvent into extraction column under a pressure drive, eluting column extracted target analytes from the outflow end pipe and collecting eluted target analyte. The sample is derived by adding 5-50 mu l hexanoate solution to the collected resolve solvent containing the target analyte, adding 0.2-2 mu l light amine derivative reagents at 20-50 degrees C for 10-40 minutes. The sample detection step is performed by separating derived target analyte solution by capillary electrophoresis with laser-induced optical detector and detecting cross-amine antibacterial drug, and with external standard.