A method for calibrating relative position of laser scanner to robot includes moving sphere to scanning scope of scanner by mechanical arm of robot, calculating out coordinate of sphere center to scanner and recording coordinate of mechanical tail end to robot base, controlling said tail end to make translation, varying attitude of said arm, calculating out rotary relation of scanner coordinate to robot base coordinate, making sphere translation by said arm and scanning sphere by scanner to record related coordinates, varying attitude of said arm and calculating out translation - relation of scanner coordinate to robot base coordinate. |