The utility model relates to a vehicle framework adjusting device, which comprises a framework body, a platform, a plurality of fixing devices and a measuring device. The platform is used as a base level, the fixing devices are used for fixing the framework body, the measuring device is used for measuring the amount of adjustment, the framework body is arranged on the platform, and the part of the platform beside each spring tube of the framework body is fixedly provided with one fixing device. The device has a simple structure and high universality and can be used flexibly and conveniently, the problems of difficulties in adjustment of four high corners of the framework can be solved effectively, the accuracy of adjustment can be ensured, and the production efficiency can be increased greatly.