The development of aquaculture in Peru has been developing progressively in the last 5 years, to opt for an innovative and sustainable economic activity. Despite this growth, it has been affected by climatic factors that harm aquaculture crops. Added to this is the lack of product training, insufficient production capacity, and high raw material costs. Faced with these problems, it has been chosen to provide a production management model through Lean-BPM that facilitates the control of processes, inventories, production plans, and cleaning; so that finally the productivity of small producers increases. The results show the efficiency of the methodology by having as current situation productivity of 75,000 Kg / m3 per year to a result of 128,905 Kg / m3 per year, which represents an increase of 71.87%, this due to the obtaining of certain equipment and formats log that optimize the control of the necessary parameters and the growth efficiencyof the same trout. Therefore, these directly improve their productive times, operating times, and use of resources; that ultimately impact on improving productivity.