Principles of maintenance of solar sewage treatment equipment: pay equal attention to maintenance and planned maintenance, focusing on prevention. Adhere to good maintenance, can reduce the wear and tear of equipment; timely maintenance and can prevent minor problems drag into major problems. Adhere to the principle of first maintenance and then production. Production must have good equipment, so can not be separated from maintenance. In order to catch up with the production task, the maintenance of equipment with disease running, so as to cause serious damage or accidents, will bring greater losses to production. Adhere to the principle of combining professional repair with mass maintenance. Users are the executive part of the equipment, they zui familiar with the performance of the equipment and technical conditions; and professional repairmen have the advantage of expertise and maintenance means, so the equipment maintenance should be professional-oriented, specialized group. The maintenance work organization of solar energy sewage treatment equipment is to do well the maintenance work organization of the equipment, mainly should do the following aspects work. 1. Set up the Functional Department of Equipment Management and make clear the responsibility system. 2. Building a professional maintenance team. 3. Make Equipment Maintenance and repair plan. 4. Do a good job of recording and filing the equipment trial run, test and maintenance, do a good job of handling equipment faults and accidents, and analyze and sort out the record data. 5. Good Equipment Safety Operation Staff Training, mobilize all staff to participate in equipment management. 6. Equipment Management and maintenance personnel to implement economic responsibility system, the provisions of Equipment Management and maintenance of the assessment indicators. Such as the actual operation rate of equipment, good rate, failure rate, average maintenance time, maintenance costs, etc.