A biological information data analysis device provided with a control unit for extracting biological information from biological information data, wherein: the control unit calculates, in a first step (ST1), first temporary biological values (A1) (n-1th temporary biological values) from multiple time values corresponding to characteristic points in the biological information data, and sets said first temporary biological values as a first biological value group (n-1th biological value group) the step after the first step (ST1) is set as nth step in which n is an integer of 2 or greater in the nth step, an n-1th non-standard value is temporarily deleted from the n-1th biological value group, and the remaining n-1th temporary biological values are set as the nth correction biological group, and said step is carried out n number of times in the final step, an nth correction biological group is set as a final correction biological value group, and the average value of the final correction biological value group is established as the biological value of the biological information. Moreover, a biological information measurement device which suitably applies the aforementioned biological information data analysis device.
