The invention provides a foundation reinforcement platform curtain grouting uplift rectifying construction method. Grouting holes are formed around a house for peripheral curtain grouting to stop water; a layer of cement base wall is formed on an underground soil layer for protecting no disturbance on inner and outer soil layers in the house platform rectifying process; then, grouting holes with a certain number are formed in the house platform as needed; according to a certain construction sequences, foundation soil on two inclined sides in a house is grouted at the same time; a grouting principle is used to enable the low part foundation of the house to realize grouting compaction lifting; different pressures are grouted on two sides of the inclined foundation to balance the control degree; and the inclined house foundation can be safely and quickly rectified and righted to recover normal use. The construction method can effectively stop fluidity of grouting materials in the soil layer, prevents blockage or destruction of underground pipelines, effectively saves the construction cost, and meanwhile, guarantees the house platform uplift rectification and righting.