The invention relates to a test platform for hardware-in-the-loop simulation of a power storage battery system. The test platform comprises a monitoring computer, an object computer, an electronic load, an environmental chamber, a programmable digital power source and a hard wire signal generator, wherein the monitoring computer and the object computer are connected, and the electronic load, the environmental chamber, the programmable digital power source and the hard wire signal generator are respectively connected between the object computer and the power storage battery system. Compared with the prior art, the test platform disclosed by the invention has the advantages that real vehicle test times are reduced, the cost of development is saved, a testing process is simplified, the automation of the testing process is realized and the like.