The construction of traditional riprap revetment is very difficult in the deep water area of the lower reaches of the Yangtze River because of the deep water and rapid flow. In recent years，net pocket riprap and caisson riprap construction technology have developed rapidly. Taking the riprap revetment project of Laohaiba dam of the Yangtze River as an example，the riprap construction qualities and costs of the two technologies are compared，and the construction qualities are analyzed from two aspects of thickening value and uniformity. The results show that the direct costs of caisson riprap are high，but the thickening effect，construction uniformity and efficiency of caisson riprap are better than net pocket riprap. Through the comparison of riprap effect in different study areas，it can be seen that in terms of effect stability control，caisson riprap technology is better than net pocket riprap.