La2Ce2O7　(LCO)　is　a　promising　candidate　for　thermal　barrier　coatings　(TBCs)　due　to　that　it　provides　better　thermal　insulation　than　yttria-stabilized　zirconia　(YSZ)　does.　In　this　work,　a　TBC　LCO　was　produced　by　solution　precursor　plasma　spraying　(SPPS).　After　the　solution　precursors　were　prepared　and　the　spraying　parameters　were　optimized,　the　thermophysical　properties　and　thermal　shock　performance　of　the　coatings　were　tested.　It　was　found　that　the　SPPS　coating　with　segmentation　crack　density　of　6mm(-1)　had　the　porosities　of　about　33.5%　at　spray　distances　of　35mm.　The　thermal　conductivity　of　the　SPPS　coatings　is　0.50-0.75Wm(-1)K(-1),　much　lower　than　that　of　the　atmospheric　plasma　spraying　(APS)　coatings　(0.85-1.25Wm(-1)K(-1)).　The　thermal　shock　performance　of　the　SPPS　coatings　reached　60　cycles,　much　better　than　the　APS　coatings.　This　improvement　is　due　to　the　segmentation　cracks　in　the　coatings,　which　can　improve　strain　tolerance　and　effectively　relieve　internal　stress.　This　study　provides　reference　significance　for　further　research　on　thermal　barrier　coatings.