With the explosive growth of information in modern society and the rapid development of artificial intelligence technology, intelligent computing centers are facing unprecedented challenges in terms of communication bandwidth and energy consumption. The traditional high-speed interconnection architecture has been difficult to meet the demand of the continuous growth of data traffic. In this context, silicon photonic technology continues to mature, which has the advantages of high bandwidth density and low power consumption, and is reshaping the interconnection system of modern data centers. By deeply integrating the photoelectric chips and integrating them into one, this technology greatly shortens the electrical connection distance, gradually extends the optical interconnection to the inside of the switch package, and even realizes the low delay and long-distance communication between the computing chips, which greatly expands the boundary of computing power. This paper summarizes the latest research progress of optoelectronic integrated chips for computational optical interconnection, systematically analyzes the technical challenges faced by various key devices and chips, and looks forward to the future development direction of silicon optical engine and its wide application prospect in many fields.