The invention provides a gel breaker capable of recovering fracturing fluid for an oil and gas well and a use method of the gel breaker. The gel breaker is prepared from a mixture A and a mixture B, wherein the mass ratio of the mixture A to the mixture B is 1:(0.01-1). According to the gel breaker disclosed by the invention, the two mixtures are compounded, so that the gel breaking at low temperature is fast and the gel breaking time at high temperature can be controlled. The use method has the advantages that simplicity and convenience as well as thorough gel breaking of the fracturing fluid at the temperature of 40 to 130 DEG C can be realized, and the problem of incomplete gel breaking of a conventional oxidation gel breaker at low temperature is improved. In addition, the gel breaking can be thoroughly realized under the action of reservoir core powder with the content of carbonate being more than 0.2 percent, so that the difficult problems that conventional clean fracturing fluid only realizes gel breaking when encountering reservoir oil, gas and water, and cannot break the gel under the dry layer conditions are solved.