Bacteria detection device and bacteria detection method

A bacteria detection device comprising:

• a detection chip which has at least one concave portion to which a membrane filter is fixed with an upper surface of the membrane filter facing upward, the membrane filter capturing bacteria to which a fluorescent label has been bound on the upper surface;
• a stage which has a placement unit on which the detection chip can be placed;
• a first driving mechanism which moves the stage in one direction;
• a second driving mechanism which moves the stage in a direction perpendicular to the one direction;
• a light emitter which emits light to the upper surface of the membrane filter on the detection chip;
• an imaging unit which takes an image of the upper surface of the membrane filter;
• and
• a controller which counts a number of the bacteria on the membrane filter by counting luminous points in the image taken by the imaging unit.