The invention discloses a construction method for drilling through a gravel layer levelly and orientedly, pertaining to the technical field of the non-excavation leveled and oriented drilling construction of a pipeline. The invention utilizes a method for separating the gravel layer by using artificial rocks according to the physical mechanical performance of a subterrane and designs a construction method which first arranges the artificial rocks with the same physical mechanical performance as that of the subterrane and then the oriented drilling is carried out in the artificial rock body, thus solving the problem that the prior art is only applicable to the drilling through construction of the shallow gravel layer within the depth within 5m; the method can eliminate bending angles possibly formed due to the inconsistent hardness of a rock body during the construction process, and effectively carry out the leveled and oriented drilling through of the gravel layer and is characterized by low construction cost and powerful applicability.