With more and more high-rise constructions have been builded, the static load test of pile is adopted as the foremost way to identify vertical ultimate bearing capacity of single pile.

In this paper, the equivalent conversion principle from self-balanced q-s curve to traditional q-s curve on pile head is introduced simply.

First, this paper introduces us the dead load experimental test equipment, the increasing load method, and how to confirm the pile foundation's vertical bearing weight through this way.