Generation method of lunar leap trajectory

The invention relates to a lunar leap trajectory generation method, and belongs to the field of trajectory design of celestial body surface flight detectors. Establishing a two-degree-of-freedom motion model in the leap track plane; dividing the leap trajectory into six stages; parameters of the five stages except the convex optimization stage in the two-degree-of-freedom motion model are set; setting section changing conditions of five stages; setting a convex optimization section flight time range; setting a convex optimization variable form, a target function and a constraint condition; setting initial conditions of a convex optimization section; setting a convex optimization section ending condition; generating a convex optimization section track; calculating attitude deviation between the convex optimization section and the joint of the first turning section and the second turning section, and mass deviation between the convex optimization section and the joint of the second turning section; if the devia