The invention discloses a simulation test method and system of a valve control device based on an FPGA. The method comprises the following steps: a real-time digital simulator simulates a working state of a direct current transmission system, and generates operation information corresponding to the working state; an actual engineering control protection device generates a first control parameter and a second control parameter according to the received operation information; and the real-time digital simulator respectively updates the simulated working state of the direct current transmission system according to the received first control parameter, a trigger pulse signal, the second control parameter and a state processing result of a valve block of a transverter. According to the method,the devices excluding the valve control device in a valve control system are simulated by using a valve module simulation card on the basis of the existing direct current control protection platform technology, wherein the valve module simulation card mainly performs valve block level simulation on the valve block of the transverter to perform an in-depth and comprehensive complete test on the valve control device so as to improve the simulation test capability and level of the valve control device.