The invention discloses a low-loss conveying test platform for heading vegetables. The low-loss conveying test platform comprises a test model machine, a conveying platform, a connector and a fixer, wherein the conveying platform is located in front of the test model machine, the connector is installed on the conveying platform, the fixer is installed on the connector, and comprises an outer cylinder, a root fixing pipe, a middle cylinder, an inner cylinder, a middle shaft, a pin shaft, a first spring and a second spring, the root fixing pipe is connected with the top of the inner cylinder, the inner cylinder is inserted into the middle cylinder, the middle cylinder is inserted into the outer cylinder, the first spring is located below the middle cylinder, and the two ends of the first spring are fixedly connected with the bottom of the middle cylinder and the bottom of the outer cylinder respectively. According to the invention, the first spring is used for simulating the resistance when cabbage is pulled out, the resistance can be controlled by researchers, the fixer is automatically separated from the cabbage after the cabbage is pulled out by a certain distance, and the situation is almost the same as the real condition that the cabbage is pulled out, so that the researchers can conduct a cabbage harvesting test without entering the field.