The invention discloses a system and method for quality detection of an interactive television service. The system comprises a PC, a signal emitter, a set top box device and a video collector. According to the system and method, a detection script is customized, test personnel can write a test script according to a test task; comparison, analysis and content recognition of sensitive regions in images are performed by regarding digital image processing, deep learning and mode recognition as the core, the real user operation is completely simulated, operation problems in services and the systemare discovered from the perspective of users, the complaint rate is reduced, and the satisfaction degree of the users is improved; and automation of the script test is realized, the workload of the test personnel is reduced, the coverage rate of the regression test is increased, the work efficiency of a research and development test team is improved, and the research and development arrival cycleof the product is shortened. Daily inspection of the services is facilitated for operation personnel through computers, problem discovery can employ mouse screenshot and video recording, materials fora report material can be conveniently obtained and made, and communication with the product and research and development teams is facilitated.