The invention discloses a power keyword segmentation based 
data retrieval method and device. The method includes the steps of S01, inputting a keyword in a to-be-inputted textbox on a page; S02, according to the inputted keyword, structuring single searching, recording and 
parsing structural objects and segmenting the keyword into two or more keywords to form a keyword set; S03, determining matching relations of the keywords in the keyword set and a word 
bank and 
processing the keywords, wherein the matching relations include complete matching, incomplete matching and non-matching; S04, sorting all the keywords stored in the searching, recording and 
parsing structural objects according to the size of weight and filtering the keywords to be displayed on the page; S05, outputting data after assembling 
SQL (structured 
query language) and searching a 
database. With the method and device, searching efficiency can be greatly improved, and searching of the power keywords is facilitated.