The invention provides a multi-point integration ejection gas line network type ejection device. The device comprises a gas source, a support and an ejection functional mechanism assembly. The gas source and the ejection functional mechanism assembly are vertically mounted on the side surface and the top surface of the support correspondingly. Inclined holes with a certain included angle are designed in the support and communicate with a gas cavity and ejection functional mechanism containing cavities to form gas lines, so that the uniformity and stability of gas flowing are guaranteed, and the pressure in the two functional mechanism containing cavities is steady and consistent. According to the multi-point integration ejection gas line network type ejection device, a gas line network structure is adopted, gas flow distribution of each gas line is controlled, and synchronous ejection of multiple ejection terminals is realized.