虽然,法律解释有如此众多的种类和表现形式。但是,我们必须承认,正是由于法律解释的多样性和随意性,决定了并不是所有的法律解释都具有法律效力。只有在司法或者行政活动中,被承认其与被解释的法律具有相同的效力,进而被适用或者被执行的法律解释;才可以称为有效解释。由于目前我国没有关于法律解释的适用原则、规则以及限制上的法律规定,因而对法律解释有效性的确认,尚缺乏法律依据。在司法实践中,通常以解释主体具有法定的立法权、司法权或者行政执法权为依据,进而认定其法律解释的有效性。笔 Although there are so many types and manifestations of legal interpretation. However, we must admit that precisely because of the diversity and arbitrariness of legal interpretations, not all legal interpretations have the force of law. Only in the judicial or administrative activities, is admitted that it has the same effect as the law being interpreted, and then be applied or enforced legal interpretation; can be called an effective explanation. At present there is no legal basis for the confirmation of the validity of legal interpretation because there is no applicable principle, rules and legal provisions on the restriction of legal interpretation in our country. In judicial practice, it is usually based on the fact that the subject has statutory legislative power, judicial power or administrative law enforcement power, and then the validity of legal interpretation is determined. pen