The ROS/Gazebo simulation software is used to evaluate the simultaneous location and mapping (SLAM) algorithm in order to solve the problem that it is difficult to obtain the accurate actual trajectory and environmental parameters of the robot. The ROS/Gazebo software was used to establish a simulation environment with known parameters and a robot model equipped with a variety of sensors.The robot model was run in the simulation environment and the sensor information was collected to form a data set.The method was used to evaluate and analyze two 2D laser SLAM algorithms. The results show that this method can effectively solve the above problems.