建设工程项目“黑白合同”效力的判定历来是司法界一个难题。本文认为实践中应尊重当事人真实意思表示,在合同无违反法定强制性规定的前提下,具体分析“黑合同”与“白合同”的效力,不能采取“一刀切”的方式。 Judgment of the effectiveness of the construction project “black and white contract ” has always been a problem for the judicial community. This paper argues that in practice, we should respect the true meaning of the parties and show that the validity of the “black contract” and the “white contract” can not be taken in a “one-size-fits-all” way unless the contract violates statutory and mandatory provisions .