The invention relates to a cascading energy storage current converter-based battery pack charging control method and control apparatus. The battery pack charging control method comprises the steps of determining number of energy storage current converters which need bypassing firstly; then, when the number of the energy storage current converters which need bypassing is less than or equal to 1, calculating an error value between a maximum voltage corresponding to the energy storage current converter having the highest voltage and a voltage of any other respective energy storage current converter separately; and finally, when absolute values of the error values between the maximum voltage and the voltage of any other respective energy storage current converter are all greater than a set error threshold value, performing PWM control on a current converting device of the energy storage current converter having the highest voltage so as to perform PWM charging on an energy storage apparatus in the energy storage current converter. By performing PWM regulation and control on the current converters, the problem that the battery pack cannot work normally caused by inconsistency and fault of a certain energy storage current converter in the battery pack can be solved, so that overall regulation and control of the battery pack is realized; and therefore, the charging control method provided by the invention can perform effective charging control on the battery pack.