The invention discloses a hanging frame for a helicopter to deliver an aircraft at the low speed and an aircraft attitude control method. The hanging frame comprises a main steel cable, hanging frame steel cables, damping plates, a hanging frame main structure, a stable umbrella, compressing components and separation release components. One end of the main steel cable is connected with the helicopter, and the other end of the main steel cable is connected with the hanging frame main structure through the hanging frame steel cables; the damping plates are used for reducing left-and-right swing of the hanging frame; the stable umbrella is used for removing front-and-back swing of the hanging frame and rotating, around the main steel cable, of the hanging frame; each compressing component comprises a compressing switch and an adjustable compressing foot, and used for separating signal detection; and the aircraft is hung below the hanging frame main structure through the separation release components. The aircraft attitude control method includes the following steps that the aircraft performs separation signal detection based on a reliable separation signal detection circuit formed by the compressing switches; before separation, open-loop control over a longitudinal channel and a heading channel of the aircraft is carried out, and close-loop control over a roll angle of a transverse channel is carried out; after separation, close-loop control over the pitch angle and normal acceleration of the longitudinal channel of the aircraft is carried out, and close-loop control over the roll angle of the transverse channel is carried out; and close-loop control over lateral acceleration of the heading channel is carried out.