SURVEYING INSTRUMENT AND SURVEYING METHOD

Provided is a surveying instrument which allows an operator to determine a direction in which the surveying instrument is installed even when the surveying instrument is invisible. The surveying instrument is configured to emit a visible laser beam coaxial with or parallel in a vertical plane to a sighting axis as main laser-pointer light; and emit a laser beam in a different form from the main laser-pointer light, as auxiliary laser-pointer light at a predetermined angle to the main laser-pointer light in a vertical plane containing the main laser-pointer light.