The invention discloses a text 
orientation analysis method which comprises the following steps of: preprocessing a review text; identifying a 
dependency relation structure of the Chinese 
syntax; calculating content polarity values of sentiment words; completing two-tuples extraction of evaluated objects and evaluation words and determining a slave relation between the evaluated objects; weighting and summing orientation values of the sentiment words to obtain an orientation value of a 
sentence so as to implement discrimination on orientation of a 
sentence level; discriminating appraising orientation of sentiment in the review by positive and negative polarity values of the 
sentence level; and according to the size of a polarity absolute value, discriminating intensity of appraising sentiment in the review. A product review orientation 
discriminator comprises an acquisition module, a preprocessing module, a syntactic analysis module, a sentiment calculating engine, a two-tuples mining engine, a content controller and a sentiment 
discriminator. According to the invention, a combined sentiment dictionary is combined and 
a domain ontology is added into text 
orientation analysis; accuracy of polarity calculation of the sentiment words and (the evaluated objects and the evaluation words) two-tuples extraction is improved; and 
orientation analysis on 
product reviews in a forum is implemented.