I found there is an article about "In view of Baidu SEO skill."  Here it is:
   
Performed some experiments, the baidu place order had following rule approximately:
1. stands well-knownness
2. websites contents/title
3. searches alliances member
4. non-commercial stands
5. pages renewal time
6. Alexa world places

the multianalysis: How is the search procedure determined a website is the well-known stand?
I want probably and following several factors related: 1.
A. stand includes quantity
B. stand exterior link (also is baidu so-called web ultra chain analytic method, very important,  
    your website connection is been better by the distributed Vietnamese luminous flux, google 
    also has this rule)
C. stand visit quantity (this point to have dispute, field front thought generally place and 
    website current capacity irrelevant)
2. website content/title the Baidu search result title match must arrange compared to the
    content match very many therefore under the well research key word.
3. member stand explanation (mainly refers to baidu some partners, tom, qq and so on,
    thenSearches the alliance, some embezzle the baidu database the procedure also to be able
    to profit at someones expense, compared to the criss-crossed person's procedure, as well
    as playcomputer this famous cheats the stand!
4. competes as if the price place question, baidu is very unfriendly to the commercial stand!
5. page root new time, baidu cares about this very much, also is, the search engine not  
    impossible to arrange several months ago pages is depending on very much front the
    position.
6. had not really thought, ALEXA place, to hundred places situations influence so big?! 
    concluding remark: domestic does the human who the search engine optimizes, all is does
    the google place, google optimizes, ha-ha, nobody dares to make baidu the optimized place,
    because baidu manual intervention nature is very strong, how is the machine again fierce
    has the rule, but human's thought does not have the rule. Is not careful can by Baidu 
    stand therefore careful spot. . Made the authorized station on other SEO. Does deceives
    the current capacity trash to stand piles the penetrating key word!