官方的解释是:
Why doesn’t CFA Institute let candidates know what score is required to pass an exam or what score candidates achieved on the exam?
The minimum passing score (MPS) for each level of the exam is determined by the CFA Institute Board of Governors each year after the administration of the exams. Neither the MPS nor individual candidate scores have ever been released. To set the MPS before the administration of the exams would require that an absolute standard be applied without regard to the difficulty of the exams; this could potentially be very unfair to candidates, especially across time. The Board's determination is based largely on standard setters' evaluation of exam difficulty, which can vary from one administration to the next.

关于你另外一个帖子里问的ethics的问题:
What is the "ethics adjustment"?
The Board of Governors instituted a policy to place particular emphasis on ethics. Starting with the 1996 exams, the performance on the ethics section became a factor in the pass/fail decision for candidates whose total scores bordered the minimum passing score. The ethics adjustment can have

官方FAQs地址:http://www.cfainstitute.org/utility/faq/Pages/index.aspx

祝楼主明天好运

这是一个没有答案的问题。。。

辅导班老师说道德部分允许你不及格，分数要靠其它部分挣回来
CFAI官网上都不公开过关标准，这个问题没法回答，但之前有标准的时候，是最高分的70%，稍稍有些参考价值吧

没有说道德一定要过，我有一个朋友道德 < 50%,还有一个〈50%，大概有2个50%和70%之间，别的基本上在70%以上，也过了。

现在CFAI已经开始认识到考试的人越来越多，所以他们已经开始改变通过的规则。争取保证CFA这个称号的含金量。所谓70%就过得规则已经落伍了。

这是一个news from Bloomberg,你有可能能了解到趋势。

July 26 (Bloomberg) -- A lower percentage of hopefuls for the Chartered Financial Analyst designation passed the first and second level of their three-part exam in June compared with a year earlier, as a record number of people tried to get an edge in Wall Street hiring.
Forty-two percent of applicants passed the exam’s first test, CFA Institute spokeswoman Kathy King said today, down from 46 percent on the June 2009 exam. Thirty-nine percent of applicants passed the second, compared with 41 percent a year earlier.
A record 139,900 candidates enrolled to take CFA exams in June, aiming to capitalize as Wall Street begins to recover from the worst shakeout in decades. Applicants take the test hoping the certification can lead to better jobs, higher salaries and a deeper understanding of finance.
Financial firms are adding workers for the first time in two years, rebuilding businesses after cutting more than 346,000 jobs since the credit crisis began in 2007, according to data compiled by Bloomberg. In New York, 6,900 financial-industry positions were added from the end of February through June, according to the New York State Department of Labor.
Candidates can take the Level 1 exam in both June and December, unlike the two latter levels, which are available once a year. Thirty-four percent of candidates passed the Level 1 exam in December 2009. Level 3 results are available in August.
China, India
The latest round of exams drew applicants from 160 countries, including 38,200 people from the U.S., 15,700 from China and 11,800 from India, the institute said June 2. The Level 1 exam, which attracted 62,300 candidates, focuses on investment tools and the foundations of business. 52,500 hopefuls applied for the Level 2 exam, which focuses on a variety of asset classes.
Successful charter recipients spend an average of 300 hours preparing for each exam and typically take four years to complete all three tests, according to the not-for-profit institute. Candidates must have at least four years professional experience in the investment industry to receive the designation.
The institute formed in 1990 with the merger of the Institute of Chartered Financial Analysts and the Financial Analysis Federation. The CFA program, previously administered by the ICFA, started in 1963 with 284 applicants. It stems in part from Benjamin Graham, a pioneer of value investing who mentored Warren Buffett and advocated a rating system for financial analysts.

soon, the minimum is 80%