Miniature LED probe

The invention discloses a miniature LED probe. The miniature LED probe includes a probe head and a connection portion connected to the probe head; the probe head includes an active panel, a driving circuit, a micro LED array and an SPAD fluorescent detector; the driving circuit includes a plurality of driving units arranged in array, and the micro LED array comprises a plurality of micro LEDs arranged in matrix; the driving units are in one-to-one correspondence with the micro LEDs, and each driving unit is used for driving the corresponding micro LED; the SPAD fluorescent detector comprises aplurality of SPAD fluorescence detection elements arranged in the array. The probe achieves direct stimulation and monitoring of nerve cells, and images the activity state of the nerve cells in realtime. Since the illuminating effect of each of the micro LEDs is independently controlled by the corresponding driving unit, stimulation of single or multiple nerve cells can be achieved, thereby obtaining a three-dimensional