The invention relates to a collapsible baby carrier (1) comprising: - a base panel (2) on which a baby can lie, - a side panel (3) attached to a periphery of and surrounding the base panel (2), wherein the side panel comprises at least one collapsible section (5a, 5b, 5c, 5d) - at least one carrying strap (7), - at least one guide, wherein the at least one collapsible section (5a, 5b, 5c, 5d) is configured to be in a raised state (RS) and in a collapsed state (CS),wherein a length of the at least one carrying strap (7) is slidable through the at least one guide (4a, 4b, 4c, 4d) to move the collapsible section (5a, 5b, 5c, 5d) into the raised state (RS), wherein the at least one carrying strap (7) comprises a locking element (8a, 8b, 8c, 8d) for preventing reverse sliding of the carrying strap (7) relative to the guide (4a, 4b, 4c, 4d) when the collapsible section (5a, 5b, 5c, 5d) is in the raised state (RS). The invention furthermore relates to a method of manufacturing the baby carrier and to methods for raising and locking and for unlocking and collapsing the at least one collapsible section (5a, 5b, 5c, 5d) of the baby carrier (1).