The invention discloses a microwave laser radar integrated system, and belongs to the field of microwave detection. The invention solves problems that a conventional radar detection system cannot achieve high resolution and long detection distance at the same time while the detection process is not affected by the weather. A microwave radar and a laser radar are integrated in one system, so the advantages of the two detection modes are integrated. The system can carry out the flexible switching of the two modes according to different detection environments and different detection requirements, so as to meet the actual demands. The system is large in measurement range, is high in measurement precision, and is wide in application range. Meanwhile, the system employs a common signal modulation and demodulation system, so the system is compact in structure, is high in stability, and is high in flexibility. The system is mainly used for the measurement of the distance of a to-be-measured object.