The invention discloses a field programmable gate array (FPGA)-based device for generating analog signals of a crankshaft and a camshaft. A host machine and a target machine which communicate with each other are connected through a transmission control protocol/internet protocol (TCP/IP), wherein a FPGA plate card which is connected with the target machine through a peripheral component interconnect (PCI) bus is connected with an analog output/digital output (AO/DO) signal plate which is connected with the FPGA plate card through a data line. Through reasonably arranging the parts, signals are accurately generated, the signal conditioning ability of engine hardware is effectively tested, and the generality is high.