An electric heating smoking system, comprising an aerosol generating apparatus and a power source apparatus configured for supplying power to the aerosol generating apparatus ,wherein: the aerosol generating apparatus comprises a first end and a second end opposite to one another; the first end is provided with a first atomizer configured for heating an aerosol forming substrate to generate an aerosol; the power source apparatus is provided with a conductive contact ; the aerosol generating apparatus comprises, opposite to the power source apparatus , a first connection position (A) and a second connection position (B); wherein the second connection position (B) is configured for keeping a conductive connection between the first atomizer and the conductive contact ; the first atomizer is in non-conductive connection to the conductive contact in the first connection position (A); and the aerosol generating apparatus keeps a connection to the power source apparatus at both the first connecting position and the second connecting position; wherein guide connection structures are configured on the aerosol generating apparatus and the power source apparatus for providing a direction guide when the aerosol generating apparatus and the power source apparatus move between the first connection position (A) and the second connection position (B); and characterized in that the first atomizer comprises a first smoke circulation path; the aerosol generating apparatus comprises a first airflow sensor configured for sensing an airflow in the first smoke circulation path; the first airflow sensor is in conductive connection to the power source apparatus when at the second connection position (B) and in non-conductive connection to the power source apparatus when at the first connection position (A). the aerosol generating apparatus comprises a first end and a second end opposite to one another; the first end is provided with a first atomizer configured for heating an aerosol forming substrate to generate an aerosol; the power source apparatus is provided with a conductive contact ; the aerosol generating apparatus comprises, opposite to the power source apparatus , a first connection position (A) and a second connection position (B); wherein the second connection position (B) is configured for keeping a conductive connection between the first atomizer and the conductive contact ; the first atomizer is in non-conductive connection to the conductive contact in the first connection position (A); and the aerosol generating apparatus keeps a connection to the power source apparatus at both the first connecting position and the second connecting position; wherein guide connection structures are configured on the aerosol generating apparatus and the power source apparatus for providing a direction guide when the aerosol generating apparatus and the power source apparatus move between the first connection position (A) and the second connection position (B); and characterized in that the first atomizer comprises a first smoke circulation path; the aerosol generating apparatus comprises a first airflow sensor configured for sensing an airflow in the first smoke circulation path; the first airflow sensor is in conductive connection to the power source apparatus when at the second connection position (B) and in non-conductive connection to the power source apparatus when at the first connection position (A). <EOS>