(Eng) Inventory management is part of the core activities of any company, therefore, of its proper management will depend on the results of subsequent activities. Inventory models are based on the assumption that the products also have an unlimited lifetime, however, in some systems there is a generation of additional costs, associated with the deterioration of the products quality, called perishable items. On the basis of the productive conditions, inventory management and waste management, the present study includes a proposal for the design of a theorical model for the inventory management in a strawberry crop, based on a perishable ítems inventory model, known as the single period inventory model and the implementation of 6 sigma metrics, for waste level consideration and control and the limitations of the crop productive capacity. A theoretical verificarion test to check the operation was performed, identifying that the model is functional, allowing to evidence in a planning period of a month, that the model allows to adequately establish the recommended optimal amount of collection; linking expected harvesting capacity regarding actual available capacity; as well as the amount of waste in the crop in a given period, allowing to establish controls on the crop, taking into account the quality factor of six sigma and its application as an indicator of occurrences of waste, which allows to guarantee in a theoretical level the planning and crop renewal periods.