根據(ju)市(shi)級生(sheng)產(chan)總值(zhi)統一(yi)核(he)算(suan)結果，2020年威海市(shi)生(sheng)產(chan)總值(zhi)3017.79億元，按(an)可比價格計算(suan)，增(zeng)(zeng)(zeng)長(chang)3.0%。分產(chan)業(ye)看，第(di)一(yi)產(chan)業(ye)增(zeng)(zeng)(zeng)加值(zhi)301.66億元，增(zeng)(zeng)(zeng)長(chang)2.9%；第(di)二產(chan)業(ye)增(zeng)(zeng)(zeng)加值(zhi)1162.27億元，增(zeng)(zeng)(zeng)長(chang)2.1%；第(di)三(san)產(chan)業(ye)增(zeng)(zeng)(zeng)加值(zhi)1553.86億元，增(zeng)(zeng)(zeng)長(chang)3.7%。全市(shi)三(san)次產(chan)業(ye)結構(gou)由上年的9.7:40.4:49.9調(diao)整為(wei)10.0:38.5:51.5。

2020年(nian)(nian)(nian)，威海市(shi)農林牧漁業(ye)總產值按可比(bi)價格(ge)計(ji)算(suan)增(zeng)(zeng)(zeng)(zeng)長(chang)3.2%，增(zeng)(zeng)(zeng)(zeng)速較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)2.6個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)規模(mo)以上(shang)工業(ye)增(zeng)(zeng)(zeng)(zeng)加值增(zeng)(zeng)(zeng)(zeng)長(chang)4.6%，增(zeng)(zeng)(zeng)(zeng)速較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)2.3個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)規模(mo)以上(shang)服務業(ye)營(ying)業(ye)收入(ru)增(zeng)(zeng)(zeng)(zeng)長(chang)3.9%，增(zeng)(zeng)(zeng)(zeng)速較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)0.8個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)固定資產投資增(zeng)(zeng)(zeng)(zeng)長(chang)2.9%，增(zeng)(zeng)(zeng)(zeng)速較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)17.9個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)社會消費品零售總額(e)(e)增(zeng)(zeng)(zeng)(zeng)長(chang)0.3%，分(fen)(fen)別高(gao)于全(quan)國、全(quan)省平(ping)均水平(ping)4.2和0.3個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)完成一(yi)般(ban)公共(gong)預算(suan)收入(ru)252.39億(yi)元(yuan)，增(zeng)(zeng)(zeng)(zeng)長(chang)1.0%，較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)13.2個百(bai)分(fen)(fen)點(dian)。2020年(nian)(nian)(nian)，全(quan)市(shi)進出口總額(e)(e)1614.57億(yi)元(yuan)，增(zeng)(zeng)(zeng)(zeng)長(chang)15.1%，增(zeng)(zeng)(zeng)(zeng)速較(jiao)(jiao)(jiao)上(shang)年(nian)(nian)(nian)提高(gao)14.3個百(bai)分(fen)(fen)點(dian)，高(gao)于全(quan)省平(ping)均水平(ping)7.6個百(bai)分(fen)(fen)點(dian)。