The invention discloses a low-temperature enrichment and thermal desorption integrated cold trap for trace volatile organic compounds. The cold trap is characterized by comprising a refrigeration system, a gas sample dehumidification system, a cold trap enrichment system and a thermal desorption system. A sample water vapor dehumidification trap and a trapping trap are integrally designed, so thatthe size and the cost are reduced. The cold trap is small in design size, free of refrigerant consumption, capable of continuously working for a long time, capable of being used as a pretreatment device for in-situ continuous monitoring and wide in application range.