The utility model discloses a drilling slag precipitation filter box for a reverse circulation pile-forming system of a high trestle construction platform. Closed box body, a slag inlet is formed in the top of the box body; a vibration filter sieve is arranged in the box body; a slag discharge groove is formed in the side wall of the box body on one side of the vibration filter sieve; a mud flow guide hopper is arranged in the box body below the vibration filter sieve, the mud flow guide hopper is connected with a mud separator through a connecting hose, the mud separator is arranged at the bottom of the box body, one end of the mud separator is communicated with a sludge discharge port in the side wall of the box body, and the other end of the mud separator is communicated with a mud outlet in the side wall of the box body. The drilling slag settling and filtering box integrates multiple functions of settling slag, removing mud and sand and the like, the whole device is convenient tomove and carry, the sand content of circulating mud is effectively reduced, the hole cleaning time is shortened, mud discharged from a drilled hole can be supplemented back in time, the working efficiency is high, and the construction cost is reduced.