The work aims to study the quick-wear part of products to be transferred during the logistics, transportation and handling processes. A package impact dynamic model of small lightweight electromechanical products was proposed and the product impact dynamic equation based on two quick-wear parts was established. The diagram of rela- tionship between the peak acceleration and the stiffness ratio of the quick-wear parts was obtained. Runge-Kutta method was used to make numeric solution. The impact time-domain response, shock spectrum and damage boundary curves of two quick-wear parts under impulsive excitation with semi-sinusoidal excitation were obtained. At different stiffness ratios of the product, the order of damage was different for each component. The part that was damaged first in nature depended on the peak acceleration of a component that first reached its fragility. The study reveals the phenomenon and the essential reason that the quick-wear parts are transferred with the impact excitation and the packaging material characteristics.