Abstract: This paper presents an expereimental study to contrast the mechanical behaviors of the urea-formaldehyde resin and cement grouted fractured rocks.The urea-formaldehyde resin grout shows better liquidity,permeability and cohensive property,therefore,the urea-formaldehyde resin grouted fractured rocks perform more stably,and stronger than cement grouts.The experiment also show that mechanical behaviors will be more greatly improved,if the fractured rocks mechanical behaviors are relatively low.