An antenna circuit structure and an antenna structure are provided. The antenna structure includes an antenna circuit structure and a chip antenna. The antenna circuit structure includes a PCB and a feed-in point, an electrical point, a main circuit system and a matching circuit disposed on the PCB. Two electrical pins of the chip antenna are soldered in the feed-in point and the electrical point, respectively. The main circuit system is electrically connected to the feed-in point, and the matching circuit is electrically connected to the electrical point. Thus, the antenna structure can be easily calibrated to get preferable matching performance.