The processes improvement is inherent to the business management. In the competitive current market, the businesses adaptation capacity is fundamental. The continuous improvement becomes into the reason of being of the companies, being adapted to the clients, being more efficient and winning in flexibility in the face of an extremely unstable economy. Several tools have been developed with the objective of improving the processes, however the integration of elements of other knowledge areas has been not very employee. The knowledge management offers a solid base to promote the continuous improvement and the HACCP system methodology allow to carry out this objective. The present investigation proposes a way for the processes improvement starting from the elements combination of knowledge and innocuousness management. The proposal leaves of the determination of the process critical activities sustained in the information and the pursuit and control of the corrective measures, what generates new information that stimulates the continuous improvement. At this way the processes are more and more efficient and effective in function of the market and the business characteristics, what assures the business success.