The invention discloses a soft coal reservoir gas enhanced extraction contrast experiment device. The device comprises a soft coal reservoir simulation system, a high-pressure gas injection balance system, a hydraulic fracturing system, a blasting control system and a data acquisition recording system. The simulation system similar to the coal sample granularity and a top plate of an actual soft coal reservoir is prepared, a soft coal and gas balance system is established through high-pressure gas injection, the top plate of soft coal is reinforced by respectively adopting the hydraulic fracturing system and the blasting control system under the same condition, the two types of enhancing measures are analyzed by the data acquisition recording system, and the gas extraction effects of two types of enhanced anti-reflection methods on the soft coal reservoir are compared. The device is convenient to operate, economic and practical, safe and reliable, compact in structure, easy to assemble, high in practicability, and short in test time, the number of combined test systems is large, the anti-reflection effects of two anti-reflection ways, i.e. hydraulic fracturing way and blasting way, on soft coal can be well simulated and studied, and very good experiment support for searching an anti-reflection way for the soft coal is provided.