Cell sorting methods are disclosed. A blood sample is provided. The blood sample is centrifuged to obtain a cell mixture having target cells and non-target cells. one or more fluorescent markers are added to the cell mixture to allow the fluorescent marker(s) to bind with the target cells. A hydrogel solution is added and mixed with the cell mixture to form a mixture solution. The mixture solution is distributed to cell wells of an array chip, and the target cells and non-target cells in the cell mixture are spread on the bottom of the cell wells in a substantially monolayer manner. The mixture solution is cured. Fluorescence image analysis is performed to select the target cells that are bound with fluorescent marker(s) and emit fluorescence, and the selected target cells are separated. |