經廣(guang)東(dong)省(sheng)統(tong)計局(ju)統(tong)一核算(suan)，2020年茂(mao)名市實現地區生產(chan)總值（初步核算(suan)數）3279.31億元(yuan)(yuan)，比上年增(zeng)長(chang)(chang)1.5%。第一產(chan)業(ye)增(zeng)加值648.68億元(yuan)(yuan)，增(zeng)長(chang)(chang)5.4%；第二產(chan)業(ye)增(zeng)加值1032.43億元(yuan)(yuan)，增(zeng)長(chang)(chang)1.1%；第三產(chan)業(ye)增(zeng)加值1598.20億元(yuan)(yuan)，增(zeng)長(chang)(chang)0.5%。三次產(chan)業(ye)結構比重為19.8∶31.5∶48.7。

2020年(nian)茂名市糧食作物播種面積374.92萬(wan)(wan)畝，比(bi)(bi)上(shang)年(nian)增(zeng)(zeng)(zeng)長1.2%。全(quan)(quan)部工業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)比(bi)(bi)上(shang)年(nian)增(zeng)(zeng)(zeng)長0.2%。全(quan)(quan)社會建筑業(ye)實(shi)現(xian)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)305.30億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，比(bi)(bi)上(shang)年(nian)增(zeng)(zeng)(zeng)長4.9%。全(quan)(quan)年(nian)金融業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)106.73億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，比(bi)(bi)上(shang)年(nian)增(zeng)(zeng)(zeng)長5.3%，房(fang)地產業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)241.66億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，增(zeng)(zeng)(zeng)長13.0%，交通運(yun)輸、倉儲和(he)郵政業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)128.04億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，增(zeng)(zeng)(zeng)長2.3%，批發和(he)零售業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)385.72億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，下降13.1%，住宿和(he)餐飲業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)48.74億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，下降21.4%。現(xian)代服務(wu)業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)786.97億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，增(zeng)(zeng)(zeng)長6.5%。生產性服務(wu)業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)(zhi)566.78億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，下降0.9%。全(quan)(quan)年(nian)社會消費品零售總(zong)(zong)額1356.48億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，比(bi)(bi)上(shang)年(nian)下降5.7%。全(quan)(quan)年(nian)進出(chu)口(kou)總(zong)(zong)額199.27億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，比(bi)(bi)上(shang)年(nian)增(zeng)(zeng)(zeng)長1.5%。全(quan)(quan)市接(jie)待游(you)(you)客801萬(wan)(wan)人(ren)次(ci)，其中過夜游(you)(you)客536.49萬(wan)(wan)人(ren)次(ci)，一日游(you)(you)游(you)(you)客264.52萬(wan)(wan)人(ren)次(ci)。旅游(you)(you)總(zong)(zong)收入88.62億(yi)(yi)(yi)元(yuan)(yuan)(yuan)，旅游(you)(you)外匯收入317.07萬(wan)(wan)美(mei)元(yuan)(yuan)(yuan)。