A dual-slot biological test meter test procedure includes the steps of a) inserting a code card into a first test slot of a dual-slot biological test meter, b) inserting a test strip into a second test slot of the dual-slot biological test meter to initiate the dual-slot biological test meter; c) inputting predetermined parameters into the dual-slot biological test meter, d) judging if the result is over the threshold or not after application of the blood sample to the reaction zone of the inserted test strip, and then entering a first stage to electrically connect the two electrodes of the inserted test strip if the result is over the threshold, and then entering a second stage to output a voltage to the electrodes of the inserted test strip for a predetermined length of time set by the code card, e) entering a third stage to read the current value subject to the setting of the code card when the predetermined length of time is up, then f) calculating the test result through a computing method set by the code card subject to the current value obtained; and then g) showing the test result on a display.