The invention provides a field sampling system for VOCs in soft furniture. The field sampling system comprises a sampler, a pure gas supply system, a flowmeter, a heater, a circulating heating temperature control loop and a VOCs fast analyzer. The sampler is provided with a first interface, a second interface and a third interface. The pure gas supply system is connected with a first interface. The flowmeter and the heater are arranged between the pure gas supply system and the first interface. The circulating heating temperature control loop is connected between the second interface and the third interface and comprises a circulating pump, a first three-way connector, an intermediate three-way valve, a VOCs adsorption filter tube, a second three-way connector and a heating temperature control device. The VOCs fast analyzer is connected with the first three-way connector. The invention also provides a rapid detection method for the VOCs in the soft furniture. The field sampling system has the advantages of simple overall structure, low cost, convenient operation and short detection period and can realize rapid detection of the VOCs in the soft furniture products. The circulating heating temperature control loop keeps the gas in the sampler at the same temperature so as to ensure the consistency of the field test conditions and the comparability of the detection results.