Chromatographic automatic sampling device

The utility model particularly relates to an automatic chromatographic sample feeding device which is characterized in that a vertical guide plate is arranged in the middle of a base, a vertical guidegroove and an inclined guide groove which are communicated with each other are formed in the guide plate, the inclined guide groove is obliquely positioned above the vertical guide groove, a verticalsecond electric sliding table is arranged on one side of the guide plate, and the lower end of the second electric sliding table is fixed on the base; a first electric sliding table is arranged on the other side of the guide plate, the inner side of the front end of the first electric sliding table is hinged to a sliding block of a second electric sliding table through a connecting shaft penetrating through the guide groove, a guide pin penetrating through the guide groove is arranged on the inner side of the middle of the first electric sliding table, and a sample injection needle is arranged on the front portion of