The invention discloses a crowdsourcing-based knowledge graph construction method and system. The method comprises the following steps: S1, creating a graph space; S2, creating a user mode and carrying out mode matching and fusion; S3, uploading resources; S4, constructing a map. The system comprises a graph space module, a user mode module, a resource module, a graph construction module and a graph database container cluster management module. According to the knowledge acquisition method based on crowdsourcing, a user can provide resources according to own requirements and add the resourcesinto the knowledge graph, and the problem of resource acquisition of the knowledge graph is solved. According to the method, an OWL-based mode is provided for the description of heterogeneous resources, and the isomerism of the heterogeneous resources is controlled from a meta-model, so the knowledge graph constructed by the method can be fused more easily. The present invention implements an operating interface for knowledge applications that provides search and reasoning capabilities for knowledge graph.