Disclosed are a channel state information (CSI) based processing method, and a terminal, a base station and a computer storage medium. The method comprises: a terminal acquiring channel measurement process configuration information, wherein at least one CSI process configuration includes configuring M sets of channel state information reference symbols (CSI-RSs) for channel measurement, with M being an integer greater than or equal to 1; and the terminal determining m sets of CSI-RSs for CSI measurement, wherein the m sets of CSI-RSs are a sub-set of the M sets of CSI-RSs, with m being an integer.