The utility model relates to a stock star -shaped element ball basis, it includes in the embedding soil base and the star -shaped element of upper surface and ground parallel and level, one or many stocks and with backing plate and anchor slab that the stock matches. Star -shaped element is equipped with the semi -girder that the several radially stretches out, and its center is equipped with an anchor rod hole I, the backing plate center is equipped with an anchor rod hole III, the stock include the body of rod and with the several branches of body of rod lower part articulated, the body of rod with install the water -resistant explosive who takes the detonator around on branch articulating is taken things, and with body of rod articulated is several branch to the upset of body of rod upper end is binded around the water -resistant explosive, the bottom of stock and the articulated is several with it branch is all by anchor in enlarged footing, and its top is passed respectively star -shaped element corresponds the position anchor rod hole I, and passes the backing plate anchor rod hole III with the anchor slab is connected to together. The utility model discloses simple structure practices thrift the investment.