The utility model provides a remote accurate object positioning system of portable high efficiency comprises GPS locater, object relative position measurement structure and data processing unit. Location method: introducing a known reference point R, utilizing GPS to confirm self position O, it is real to obtain comparatively accurate reference angle alpha through OR and water flat line contained angle to the angle alpha who utilizes fiber gyroscope to measure OR and water flat line surveys, with measure that the measurement angle degree beta that obtains impact point T surveys and initial point O and T apart from L, utilize accurate angle alpha difference alpha real and the measurement angle degree to survey the system error that unknowable factor such as eliminating the environment caused, obtain impact point T measurement angle degree actual value place scope through error analysis to the final position of confirming location impact point T. The utility model discloses utilizing the comparatively accurate distance of laserscope measurable, utilizing fiber gyroscope more accurate than the course angle that MEMS gyroscope recorded, angle error is littleer, and measurement accuracy is higher, the system can singlely carry, portable easy operation.