The invention relates to the technical field of unmanned ship control, and in particular relates to an unmanned ship indoor commissioning method which comprises: acquiring an image of an unmanned shipand analyzing the space coordinates of positioning points distributed in an isosceles triangle on the ship; working out the attitude, the position and the speed of the unmanned ship according to thespace coordinates according to the positioning points; analyzing the desired speed and an approaching parameter required to reach a desired trajectory by a control algorithm; analyzing a motor controlled quantity required to reach the desired speed by the control algorithm according to the current speed and the desired speed; sending the motor controlled quantity and regulating the motor accordingto the controlled quantity. The method uses a computer as a control terminal to achieve calculation of a relative control algorithm instead of a hull controller, relatively efficiently obtains the appropriate parameter of the control algorithm, and a control program is no longer required to be repeatedly burned onto the unmanned ship, thereby greatly facilitating the commissioning step. In addition, the commissioning parameters are irrelevant to the unmanned ship model and can be directly applied in practice.