The machine adopts tooth stepping feeding, accurate interval, RouLiao is supported by three sets of removable riffle, needle is controlled by the spring, can really achieve with bones. Injection pressure, injection rate, the step distance and speed, according to the injection material size and injected with the organizational structure of content, can be arbitrary adjustment, to achieve the ideal effect of injection. In addition, the machine to prevent the needle blocking by level 4 filter, simple operation, convenient maintenance, is the ideal equipment of meat processing.