The invention relates to a mobile terminal 3D glass cover plate and a printing ink spray coating process method thereof. The printing ink spray coating process method is characterized by comprising the following procedures: procedure 1, preparing an obstacle according to the size of a transparent visible area (13) of the mobile terminal 3D glass cover plate; procedure 2, prior to spray coating, adhering the obstacle on the position of the transparent visible area (13); procedure 3, spray coating printing ink on the whole surface, and spray coating printing ink on the whole bottom surface of the mobile terminal 3D glass cover plate, so that the printing ink covers the obstacle; procedure 4, after the spray coating, taking off the obstacle, so no printing ink is left in the transparent visible area (13); and procedure 5, performing exposing and developing to obtain a pattern the same as a Film screen. The requirements that no printing ink is left in the transparent visible area are satisfied, the display effect is improved, and the process is simple, easy and feasible.