A heterogeneous contents mixing container with improved productivity and sealing ability. The container includes a container body for containing a second content and a first content receiving member is formed in the container body to contain a first content. The receiving member includes an upper separation cap and a lower fixing cap. A shoulder is rotatably coupled to the container body and a lift guide member is fixed to the container body and formed with a spiral groove. A lift member moves upwardly by rotation of the shoulder and is formed with a lift protrusion. A pump housing moves upwardly with the lift member. A discharge pump moves upwardly with the pump housing to pump the first and second contents mixed with each other. A push button is coupled to the discharge pump to be movable up or down and is formed with a discharge outlet.