Taking ICBO standard as a reference and using the flat panel constraint test, self developed concrete plastic stress testing device and mercury intrusion method, the effects of recycled fine aggregate particle size, replacement rate, water cement ratio, sand ratio on the plastic stress, pore structure and the property of plastic shrinkage cracking were investigated. The results show that the risk of cracking of the recycled fine aggregate concrete reduces gradually with decreasing recycled fine aggregate particle size range and increases with increasing replacement ratio of recycled fine aggregate. The water cement ratio of recycled fine aggregate concrete is of great importance to the crack resistance of the concrete, either too high or too low would increase the risk of cracking. Appropriate sand ratio can be chosen to control the cracking of recycled fine aggregate concrete.