The present invention discloses a storage battery pack health degree assessment method. The method comprises the following steps that: the health degree sequence of each feature quantity standard value related to storage battery pack health degree is set; the allowable maximum floating range of each feature quantity is set to be a threshold value; a sequence formed by the feature quantity actual values of storage battery packs to be subjected to health degree assessment is selected as a comparison sequence; comparative calculation is performed on the feature quantity actual values in the comparison sequence and corresponding feature quantity standard values, so that nominal values are obtained; the nominal value sequence and nominal value reference sequence of each storage battery pack after the actual value of each storage battery pack is initialized are calculated according to a nominal value calculation formula; a gray correlation degree analysis algorithm is used as a calculation model to calculate a correlation coefficient between the comparison sequence and reference sequence of each storage battery pack; and a health degree assessment result is determined. With the method adopted, the health score of an entire storage battery pack can be calculated, and analysis and judgment on the operating statuses of storage batteries can be realized with high accuracy.