A method for continuous signal coverage of a target region, applied to an aircraft carrying a communication base station, the method comprising: acquiring a flight height, a maximum flight trajectory distance, a roll angle of the aircraft, and a preset center position of the target region; acquiring a vertical-Plane, V-Plane, Half Power beamwidth of an airborne antenna of the communication base station and a furthest signal coverage point position relative to the preset center position; characterized by, acquiring antenna direction information and a horizontal-Plane, H-Plane, Half Power beamwidth of the airborne antenna; determining an antenna type of the airborne antenna based on the antenna direction information, the H-Plane Half Power beamwidth, and the V-Plane Half Power beamwidth, the antenna type comprising an inside antenna and a non-inside antenna; determining a target downward inclination angle of the airborne antenna by using formula or formula based on the antenna type, the flight height, the maximum flight trajectory distance, the roll angle, the preset center position, the V-Plane Half Power beamwidth, and the furthest signal coverage point position; α 1 = arctan OG + R h − β 1 + γ where α 1 is the target downward inclination angle of the inside antenna when the airborne antenna is the inside antenna, h is the flight height, R is the maximum flight trajectory distance, γ is the roll angle, β 1 is the V-Plane Half Power beamwidth of the inside antenna, and OG is a distance between the preset center position and the furthest signal coverage point of the inside antenna; α ∼ 1 = arctan OA − R h − β ∼ 1 − γ where α 1 ∼ is the target downward inclination angle of the non-inside antenna when the airborne antenna is the non-inside antenna, β ~ 1 is the V-Plane Half Power beamwidth of the inside antenna, and OA is a distance between the preset center position and the furthest signal coverage point of the non-inside antenna; and adjusting a present downward inclination angle of the airborne antenna to the target downward inclination angle, to enable a continuous signal coverage region to comprise the target region. acquiring a flight height, a maximum flight trajectory distance, a roll angle of the aircraft, and a preset center position of the target region; acquiring a vertical-Plane, V-Plane, Half Power beamwidth of an airborne antenna of the communication base station and a furthest signal coverage point position relative to the preset center position; characterized by, acquiring antenna direction information and a horizontal-Plane, H-Plane, Half Power beamwidth of the airborne antenna; determining an antenna type of the airborne antenna based on the antenna direction information, the H-Plane Half Power beamwidth, and the V-Plane Half Power beamwidth, the antenna type comprising an inside antenna and a non-inside antenna; determining a target downward inclination angle of the airborne antenna by using formula or formula based on the antenna type, the flight height, the maximum flight trajectory distance, the roll angle, the preset center position, the V-Plane Half Power beamwidth, and the furthest signal coverage point position; α 1 = arctan OG + R h − β 1 + γ where α 1 is the target downward inclination angle of the inside antenna when the airborne antenna is the inside antenna, h is the flight height, R is the maximum flight trajectory distance, γ is the roll angle, β 1 is the V-Plane Half Power beamwidth of the inside antenna, and OG is a distance between the preset center position and the furthest signal coverage point of the inside antenna; α ∼ 1 = arctan OA − R h − β ∼ 1 − γ where α 1 ∼ is the target downward inclination angle of the non-inside antenna when the airborne antenna is the non-inside antenna, β ~ 1 is the V-Plane Half Power beamwidth of the inside antenna, and OA is a distance between the preset center position and the furthest signal coverage point of the non-inside antenna; and adjusting a present downward inclination angle of the airborne antenna to the target downward inclination angle, to enable a continuous signal coverage region to comprise the target region.