The utility model relates to an automatic brush pen, which can continuously self-feed ink, has a flow capacity artificially controlled, is convenient for utilizing, and can enhance integral artistic effect of calligraphy works. The automatic brush pen of the utility model comprises a hollow pen holder and a pen point, with an inking device with an ink regulating device arranged between the hollow pen holder and the pen point. The hollow pen holder is provided with a front cover and a rear cover, the ink regulating device comprises a regulating bolt which is arranged on the rear cover and connected with a regulating valve handle, and the other end of the regulating valve handle is connected with a regulating valve head. A valve seat is arranged on the front cover of the pen holder, the pen point is arranged on the valve seat which is provided with an ink channel, the pen holder is opened with an ink-feeding hole, and the ink channel comprises a middle hole opened on the valve seat. The lower end of the middle hole is provided with a transversal pore passage communicated with the middle hole, two ends of the transversal pore passage are provided with a vertical groove communicated with the transversal pore passage, with the vertical groove communicated with the pen point.