A survey system (1, 200, 1010) comprising: a measurement information representing device including a target that reflects incident tracking light along an incident direction, a display, and a communication part; and a survey instrument (50, 250, 120) including a tracking part that receives the tracking light reflected by the target to automatically track the target, a horizontal angle detector (68, 1034) that detects a horizontal angle of the target relative to a horizontal reference line based on the light received by the tracking part, a distance measurement part that emits measurement light toward the target and receives the measurement light reflected by the target to obtain a distance to the target, a calculation controller (70, 1037) that calculates a position of the target based on the distance obtained by the distance measurement part and the horizontal angle detected by the horizontal angle detector, and a communication part (65,1041) that sends data on the position of the target calculated by the calculation controller, wherein the measurement information representing device includes a fan beam output device (45, 145), and wherein a guide light receiving part (55, 256, 1200) that receives the fan beam output from the fan beam output device is provided in the survey instrument, characterized in that the display displays a reference line indicating a previously set reference direction and an obtained target position of a measurement and installation point, wherein the measurement information representing device includes a projection part that projects a target information image including a target position image indicating the target position on a projection surface, wherein the fan beam output device (45, 145) outputs at least three fan beams spreading in a right and left direction and scanning in an up and down direction, wherein an angle of a survey instrument direction from the target to the survey instrument relative to a reference line previously set on the display is obtained by the calculation controller based on a light receiving timing of each of the fan beams received by the guide light receiving part, wherein at least one of the at least three fan beams is inclined with respect to an axis parallel to the rotation axis of a polygon mirror (22, 122) that is used for generating the fan beams, and wherein data on the angle obtained by the calculation controller is sent by the communication part of the survey instrument, the data on the angle is received by the communication part of the measurement information representing device, and a direction line indicating a direction to the survey instrument is displayed on the display of the measurement information representing device. a measurement information representing device including a target that reflects incident tracking light along an incident direction, a display, and a communication part; and a survey instrument (50, 250, 120) including a tracking part that receives the tracking light reflected by the target to automatically track the target, a horizontal angle detector (68, 1034) that detects a horizontal angle of the target relative to a horizontal reference line based on the light received by the tracking part, a distance measurement part that emits measurement light toward the target and receives the measurement light reflected by the target to obtain a distance to the target, a calculation controller (70, 1037) that calculates a position of the target based on the distance obtained by the distance measurement part and the horizontal angle detected by the horizontal angle detector, and a communication part (65,1041) that sends data on the position of the target calculated by the calculation controller, wherein the measurement information representing device includes a fan beam output device (45, 145), and wherein a guide light receiving part (55, 256, 1200) that receives the fan beam output from the fan beam output device is provided in the survey instrument, characterized in that the display displays a reference line indicating a previously set reference direction and an obtained target position of a measurement and installation point, wherein the measurement information representing device includes a projection part that projects a target information image including a target position image indicating the target position on a projection surface, wherein the fan beam output device (45, 145) outputs at least three fan beams spreading in a right and left direction and scanning in an up and down direction, wherein an angle of a survey instrument direction from the target to the survey instrument relative to a reference line previously set on the display is obtained by the calculation controller based on a light receiving timing of each of the fan beams received by the guide light receiving part, wherein at least one of the at least three fan beams is inclined with respect to an axis parallel to the rotation axis of a polygon mirror (22, 122) that is used for generating the fan beams, and wherein data on the angle obtained by the calculation controller is sent by the communication part of the survey instrument, the data on the angle is received by the communication part of the measurement information representing device, and a direction line indicating a direction to the survey instrument is displayed on the display of the measurement information representing device.