The invention discloses a plain multi-dimensional SERP 
system. The plain multi-dimensional SERP 
system comprises the steps: (1) 
racking products through a self-collection module, a supplier module anda centralized collection module by a product 
racking unit, wherein a recording module carries out the 
data recording of each racked product, and the 
data content comprises the 
racking and warehousingtime sequence, the 
purchasing price and the allocation product information; (2) entering a 
product order unit, enabling sales data of each platform to enter an ERP 
system, matching logistics channelsto complete form filling, returning tracking numbers and allocating product inventory, if inventory exists, directly entering the step (4), and if inventory does not exist, entering the step (3), andif inventory information does not exist, directly entering the recording module; (3) establishing a product 
purchasing unit, and if the products are not stored, supplementing the products through a self-picking product channel, a supplier product channel and a centralized picking product channel; and (4) establishing a product picking and warehouse-out unit which is a complete full-chain functionand business solution.