The embodiment of the invention provides an automatic bacteria identification device and method, automatic test equipment, as well as a urine analyzer. The automatic bacteria identification device includes a detection unit and a classification unit, the detection unit is used for detection of a regional part, in an input image, which may contain bacteria, so as to generate an output image containing the regional part, the classification unit is used for extracting a feature from the regional part detected by the detection unit, and identifies if the regional part is the bacteria on the basis of the feature; the feature is at least one from area, area ratio, cyclic shape, aspect ratio, contrast ratio and texture complexity of the regional part. According to the automatic bacteria recognition device and method of the embodiment of the invention, the bacteria can be automatically identified from the input image, and then a scheme, which is very effective in aspects of accuracy, cost and time, can be obtained.