The present invention relates to a hierarchical distributed up-going scramble code divison multiple address system. Said invention comprehensively considers the up-going scramble code characteristics and its several factors of calculation, search, maintenance complexity and communication between plates so as to adopt the invented hierarchical distributed up-going scramble code distribution method, and make the main control plate and every wireless resource plate process up-going scramble code request of user terminal according to management level, and make every wireless resource plate process the scramble code in respective scramble code segment, so that it can reduce communication between main control plate and every wireless resource plate and can raise up-going scramble code distribution efficiency.