Aiming at the problem of autonomous controllability evaluation of aerospace components, an autonomous controllability evaluation method of aerospace components based on “five principles” is proposed. The method comprises a grading principle, a lowest score principle, a passing line principle, an expert scoring principle and a one-vote veto principle, and a three-layer evaluation index system for the autonomous controllability of aerospace components is constructed, and the evaluation index system comprises 30 indexes. Combined with the index system, the evaluation method is discussed, and the veto function is put forward combined with the principle of one-vote veto, which makes the evaluation process more universal. The results show that the method can provide an important reference for the evaluation of the autonomous controllability of aerospace components.