There are two modes for air-to-air missile's all-aspect attack: target-certered all-aspect attack and all-aspect attack of the launch platform. The relationship between the two modes are studied from five aspects of concept, representation of attack envelope, calculation of typical attack ranges, display in cockpit, and key technical problems. It is concluded that: 1) The target-certered all-aspect attack pays more attention on the relation of the missile with the target and is the beginning of attacking, while the all-aspect attack of the launch platform pays more attention on the relation of the launch platform with the target and is the ending of attacking; and 2) The target-certered all-aspect attack is the basis for studying the all-aspect attack of the launch platform, but the methods and contents of study are quite different due to the different tools used.