Construction platform for cast-in-place pile hard rock construction and construction method thereof

The invention discloses a construction platform for cast-in-place pile hard rock construction and a construction method thereof. The construction platform comprises a multi-jaw chuck and a remote control system, a plurality of connecting bases capable of stretching out and drawing back in the radial direction of the multi-jaw chuck are evenly arranged on the periphery of the multi-jaw chuck, and a protection wing is fixedly arranged on the lower side face of each connecting base, and a connecting plate is fixedly arranged on the upper side face of each connecting base, an electric drilling set is fixedly arranged on the upper side face of each connecting plate, the drilling working end of each electric drilling set is located between every two adjacent protective wings, and each electric drilling set and the multi-jaw chuck are connected with a remote control system. The construction platform can be simply installed on a common lifting appliance in a construction site, and the construction depth can be freely