A foldable tool kit includes: a main body having a first side board and a second side board spaced from each other; multiple tools including a grinding tool, a chuck and a blade, one end of the tools being pivotally connected with at least one end of the main body and rotatable; the other end of the chuck having a chuck section; a grinding section being disposed on the grinding tool; and at least one tire reparation member received in one of the side boards. In case that a tire is punctured, the foldable tool kit can be used to repair the tire.