The detection device includes slide glass with transparent film attached on surface, reactor, separation capillary (SC), reaction capillary with detection window (DW), luminescence detection part located at DW, and micromanipulator. Being positioned between the slide glass and the reactor, the micromanipulator is in use for grasping SC. Cell suspension pool and dissolve film pool are setup on the transparent film. Being setup on the slide glass, buffer solution pool is connected to high-voltage end. The reactor includes reaction continuous groove (RCG), and inlet connected to RCG for adding chemiluminescence reagent. RCG is connected to ground. RCG is connected to the reaction capillary. SC is setup in RCG. One end of SC is on the transparent film, and the other end is positioned at DW. Features are: easy of preparation, and operation, small size, low cost, and high detection sensitivity. The detection device is suitable for simple cell analysis, and research in area of life sciences.