Protective fence convenient to replace and used for environmental protection and management

The utility model relates to the technical field of environmental protection management devices, and discloses an environmental protection management protective fence convenient to replace, which comprises two groups of upright posts, a bottom plate is fixedly mounted on the lower sides of the two groups of upright posts, mounting grooves are formed in the side surfaces of two groups of reinforcing blocks, and mounting plates are movably mounted in the two groups of mounting grooves. A protective net plate is fixedly connected between the two sets of mounting plates, restraining grooves are formed in the positions, corresponding to the mounting plates, of the upper sides of the two sets of stand columns and penetrate through the stand columns and the mounting plates, and restraining plates are movably mounted in the restraining grooves corresponding to the mounting plates. According to the protective net, when the screws reach the positions of the clamping grooves in the upper side, the threads move to the in