A trace-amount liquid sample collector, comprising a main body and a first absorbent body, wherein the main body - has at least one open end, - includes an elastic hydrophobic material, wherein the first absorbent body - is at least partially disposed inside the main body, - includes a water-absorbing material having a small volume expansion accompanied by absorption of a liquid, and - is disposed so as to contact the outside via the at least one open end of the main body, wherein the collector has a flow path leading from the open end to the inside of the main body, and wherein the first absorbent body is disposed in the flow path, characterized in that the width of the first absorbent body is designed to be smaller than the width of the flow path, and in that it is designed to allow air to pass between the open end and the inside of the main body through a gap between the flow path and the first absorbent body, and wherein the liquid sample collector further comprises a second absorbent body, which - is at least partially disposed in the main body, and at least partially in contact with the first absorbent body, - is configured to absorb the trace-amount liquid sample absorbed by the first absorbent body, and - includes a water-absorbing material having a large volume expansion accompanied by absorption of a liquid. comprising a main body and a first absorbent body, wherein the main body - has at least one open end, - includes an elastic hydrophobic material, - has at least one open end, - includes an elastic hydrophobic material, wherein the first absorbent body - is at least partially disposed inside the main body, - includes a water-absorbing material having a small volume expansion accompanied by absorption of a liquid, and - is disposed so as to contact the outside via the at least one open end of the main body, - is at least partially disposed inside the main body, - includes a water-absorbing material having a small volume expansion accompanied by absorption of a liquid, and - is disposed so as to contact the outside via the at least one open end of the main body, wherein the collector has a flow path leading from the open end to the inside of the main body, and wherein the first absorbent body is disposed in the flow path, characterized in that the width of the first absorbent body is designed to be smaller than the width of the flow path, and in that it is designed to allow air to pass between the open end and the inside of the main body through a gap between the flow path and the first absorbent body, and wherein the liquid sample collector further comprises a second absorbent body, which - is at least partially disposed in the main body, and at least partially in contact with the first absorbent body, - is configured to absorb the trace-amount liquid sample absorbed by the first absorbent body, and - includes a water-absorbing material having a large volume expansion accompanied by absorption of a liquid. - is at least partially disposed in the main body, and at least partially in contact with the first absorbent body, - is configured to absorb the trace-amount liquid sample absorbed by the first absorbent body, and - includes a water-absorbing material having a large volume expansion accompanied by absorption of a liquid.