Soil mechanics experiment is an important part of soil mechanics curriculum system, and it plays a unique role in deepening theoretical understanding, training ability of experimental, stimulating innovation ability and cultivating engineering consciousness. Based on the investigation and in-depth analysis of the current situation and existing problems of soil mechanics experiment teaching in many colleges, the paper systematically proposes the teaching reform scheme of soil mechanics experiment including the combination of online and offline, multi-stage before and after classes, and a deep integration of virtual simulation, numerical simulation and experimental teaching. The reform plan for experimental teaching of soil mechanics is elaborated in detail:the construction of a "five-in-one" soil mechanics experimental curriculum system, relying on MOOC, experimental space, PFC and other information teaching methods to create online and offline dual-channel, multi-dimensional learning space, develop design and innovative experimental projects, formulate "quantity" and "efficiency" parallel assessment mechanism, fully stimulate students’ learning interest, tap scientific research potential, improve engineering ability, and significantly improve teaching satisfaction. In this way, the process of building a national first-class curriculum of soil mechanics in Southwest University will be promoted, and it will provide reference for the reform and innovation of the teaching of soil mechanics experimental.