The invention relates to a feed system for a continuous digester (6) where at least 2 pumps (12a, 12b) are arranged in parallel in the bottom of a pre-treatment vessel (3), whereby the outlets from the pumps are combined at at least one merging point (16) before a common transfer line is led to the top of the digester. The invention makes it possible to provide a feed system with a higher accessibility and operational reliability and being able to operate the main part of the pumps at optimal efficiency even if the production capacity is reduced.