This disclosure relates to the field of computer technology and provides a picking location planning method, a picking location planning device, a computer-readable storage medium, and an electronic device. The picking location planning method includes: constructing a total picking cost function for the order based on the picking decision variables and picking costs corresponding to each location; constructing an initial problem model based on the total picking cost function of the order combined with a first demand constraint associated with each target item category; transforming the initial problem model to obtain K knapsack problem models corresponding to the K target item categories; solving each knapsack problem model using a dynamic programmingalgorithm to obtain each initial non-picking location set corresponding to each target item category; and determining the picking location set corresponding to each target item category based on the K initial non-picking location sets. This disclosure enables faster acquisition of optimal picking locations.