h type of anti-sliding pile as a new sliding bracing structure have many advantages ,such as larger lateral rigidity, more anti-sliding force ability ,more stably and easy constructed. However, the mechanism of h type of anti-sliding piles is very complex ,and the action of soil around the double pile can not solve directly , few design theory and analysis method is mature . aiming at the deficiency of h type of anti-sliding piles, this paper present a new method to research the structure characteristics and analysis of the effects of a cantilever length for h type of anti-sliding pile .At last, the comprehensive evaluation of this structure show that Mechanical properties of h type of anti-sliding pile is much better than portal anti-sliding piles and should be used in the similar engineering .