The utility model provides a laser scanning distance measurement device relates to the range finding field, and the device includes unable adjustment base, angle encoder, rotary platform, motor, laser lamp -house, light sensing device, power supply conveying and data sink and receiving arrangement and data processing module, it is rotatory that the motor passes through drive belt drive rotary platform, laser lamp -house and light sensing device fix on rotary platform, and light sensing device is used for accepting the laser that the next laser lamp -house of reflection sent, power supply conveying and data sink rigid coupling are on unable adjustment base, and power supply receipt and wireless data conveyer are connected with rotary platform, the power supply is received and wireless data conveyer is used for receiving data and the electric energy that the power supply conveyed and data sink sends, power supply receipt and wireless data conveyer are connected with light sensing device, the angle encoder is fixed on rotary platform, data processing module is connected with angle encoder and light sensing device respectively. The technical problem that the inside device of small -size laser radar easily weares and teares has been solved in this application.