The invention discloses a rapid computational formula loop point detecting method, which specifically comprises the steps of (1) reading lists of all computational formulas; (2) carrying out recursive analysis when the list are judged not to be void; (3) identifying the left sides of equal marks of all the computational formulas as left operands, and identifying the right sides of equal marks of all the computational formulas as right operands; (4) placing all left operands into a list; when a recursion circulates to a computational formula, whether all right operands of the computational formula are located in a left operand list or not is judged in sequence, if so, the computational formula represented by the left operands is extracted into a new computational formulas list, and is used in case of next recursion; if not, no processing is carried out, a next computational formula is continued; (5) when the recursion ends the circulation, a loop point is determined. By using the method, the problem that a computer enters an endless loop or resources of the computer are exhausted when the computer carries out data computation can be effectively solved, the operation speed of the computer can be improved, the method can be implanted into a relevant application system by simple configuration, and the computation correctness can be improved.