There is provided a method of controlling a tape processing apparatus where braille is embossed at one side in the width direction of a tape with an embossing unit arranged at the one side. The method includes: an embossing-position defining step of defining a braille embossing position in the width direction of the tape; an embossing-data generating step of generating embossing data based on input information and the embossing position; and a braille embossing step of embossing braille on the tape based on the generated embossing data. In the embossing-data generating step, when the embossing position is arranged at one side in the width direction on the same side as the embossing unit, the embossing data is generated for forward embossing. While, when the embossing position is arranged at the other side in the width direction opposite to the embossing unit, the embossing data is generated for reverse embossing.