A　compound　cavity　was　proposed　to　achieve　both　whispering　gallery　mode　(WGM)　lasing　and　random　lasing.　The　WGM-random　compound　cavity　consisted　of　a　random　structure　with　an　annular　boundary,　which　was　fabricated　by　a　method　combining　both　inkjet　printing　and　metal-assisted　chemical　etching　methods.　An　ultrathin　polymer　membrane　was　attached　to　the　WGM-random　compound　cavity,　forming　a　polymer　laser　device.　A　transformation　from　WGM　lasing　to　random　lasing　was　observed　under　optical　pumping　conditions.　The　laser　performance　could　be　easily　tailored　by　changing　the　parameter　of　the　WGM-random　compound　cavity.　These　results　provide　a　new　avenue　for　the　design　of　integrated　light　sources　for　sensing　applications.