: This topic has designed a kind of virtual oscilloscope based on the embedded technical. On the hardware the S3C2410+IDT7204 structure were used, on the software real-time operating system uC/OS-II were used in the design of embedded virtual oscilloscope. ARM9 microprocessor's high speed handling ability are fully used, as well as FIFO in the read-write control logic, the superiority in high speed data exchange aspect, realizes the double channel synchronization profile demonstration. the multi-task run and the real-time processing were realized by using on the uC/OS-II operating system's in ARM9 microprocessor transplant. This oscilloscope has the cost lowly, to be possible to as the common oscilloscope, also to be possible to as an intelligent module the merit which used in the embedded system.