The invention discloses an AVA analysis method based on elastic wave reverse time migration ADCIGs. The method comprises the following steps of firstly, using an elastic wave equation to prolong a wave field and fully considering a vector characteristic of the wave field and converted wave information; then, extracting an angle trace gather from reverse time migration; and then, based on the generated angle trace gather, carrying out AVA analysis, and realizing hydrocarbon anomaly detection. Compared to a traditional migration range trace gather acquired based on Kirchhoff or a one-way wave migration method, the angle trace gather generated in the invention has no kinematics and dynamics illusions, possesses a small multipath interference and a high signal to noise ratio, and can really reflect an AVA attribute of a underground medium, therefore, the angle trace gather is substantially better than the traditional migration range trace gather. A necessary high-quality and high-fidelity prestack angle domain data body can be provided for the AVA analysis and prestack elastic parameter inversion, which is good for increasing accuracy and precision of oil-containing gas detection, reservoir depiction and fluid identification.